MC02: Control System Upgrades in Existing Facilities
MOAG001
Status of the APS Accelerator Controls Following Its Major Upgrade
1
The APS Upgrade replaced the original storage ring with a fourth-generation multi-bend achromat lattice and modernized its accelerator controls while retaining the injector systems. The upgraded controls integrate a high-speed network, enhanced timing and event distribution, advanced beam diagnostics, and time-correlated data acquisition within the EPICS framework. These improvements enabled a rapid transition from decommissioning to beam commissioning and the restoration of user operations within one year. This paper summarizes the current status of the APS accelerator controls, highlights key system upgrades, and presents lessons learned that may serve as a reference for future control system modernization.
Paper: MOAG001
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-MOAG001
About: Received: 29 Aug 2025 — Revised: 04 Sep 2025 — Accepted: 04 Nov 2025 — Issue date: 25 Nov 2025
MOAG002
Design and development of Diamond-II accelerator control system
9
Diamond light source is a 3rd-generation synchrotron light source that has been operating since 2007. The existing accelerator control system is based on EPICS V3, and a mixture of VME hardware, PCs and embedded devices. An upgrade of Diamond to Diamond-II is now in the construction phase with installation set to begin in January 2028, followed by storage ring commissioning in Oct 2028. A new control system is currently under development, leveraging existing infrastructure while modernizing key components. The updated control system will be built on EPICS 7 with software deployed via Kubernetes clusters. This paper outlines the system requirements, development activities, planning, and deployment strategy, for the Diamond-II accelerator control system.
Paper: MOAG002
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-MOAG002
About: Received: 05 Sep 2025 — Revised: 18 Sep 2025 — Accepted: 28 Oct 2025 — Issue date: 25 Nov 2025
MOAG003
Upgrade and modernization of CSNS accelerator control system towards CSNS-II
14
The CSNS-II project, launched on 1st January 2024, aims to significantly enhance the beam power from 100 kW to 500 kW. The current accelerator control system, commissioned in 2018, was designed based on hardware and software platforms finalized in 2012. Over time, these systems have begun to exhibit obsolescence issues. To meet the advanced requirements of CSNS-II, a comprehensive upgrade and modernization of the control system is essential. This presentation outlines the overall upgrade plan and design considerations for the control system. The key upgrades include: transitioning the EPICS framework from version 3 to the modern and feature-rich version 7, migrating the hardware platform from VME to MTCA, adopting the latest Phoebus as part of the Control System Studio suite, incorporating support for big data analytics and artificial intelligence capabilities to enhance system performance and diagnostics. These enhancements will ensure the control system meets the demanding operational requirements of CSNS-II while improving reliability, scalability, and future readiness.
Paper: MOAG003
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-MOAG003
About: Received: 14 Sep 2025 — Revised: 23 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
MOAG004
SLS 2.0 beamline upgrade experience: navigating modernization, legacy, and commissioning constraints
18
After successfully reaching the key milestones of the SLS 2.0 machine upgrade, focus and prioritization have shifted to the beamline upgrades. These have been structured into three distinct phases. In the "pre-dark time" Phase 0, core technical solutions and controls hardware portfolio were validated on selected beamlines. We are currently finalizing the upgrades for Phase 1 beamlines, while preparations for Phase 2 — scheduled for 2026 — are gradually ramping up. In this contribution, we first reflect on the Phase 1 commissioning deliverables and assess how far we could implement the originally proposed control system upgrade strategy, particularly regarding hardware modernization and the coexistence with legacy components. Second, we analyze the impact of resource and time constraints on our commissioning activities. Delays in the prerequisite steps for control system commissioning (device list provision, schematic design, hardware assembly, testing, installation and cabling) largely due to limited capacity in infrastructure groups, ultimately resulted in a significantly compressed commissioning window during a critical project phase. We discuss adopted mitigation strategies - including pre-commissioning using test systems, solution standardization efforts, task prioritization driven by the minimum viable product (MVP) delivery, and strong cross-team coordination activities. These insights offer practical lessons for managing the coming SLS 2.0 Phase 2 beamline upgrades.
Paper: MOAG004
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-MOAG004
About: Received: 05 Sep 2025 — Revised: 23 Sep 2025 — Accepted: 28 Oct 2025 — Issue date: 25 Nov 2025
MOAG005
Upgrading Fermilab’s accelerator control system with ACORN
23
The Fermilab Accelerator Complex is the largest national user facility in the Office of High Energy Physics (DOE/HEP) program and the only national user facility operating at Fermilab. Fermilab serves as the host to the Long Baseline Neutrino Facility/Deep Underground Neutrino Experiment (LBNF/DUNE), the laboratory’s flagship project for neutrino science that is under construction. LBNF/DUNE will be powered by megawatt beams from an upgraded accelerator, the Proton Improvement Plan II (PIP-II) that will replace the laboratory’s aging linear accelerator with a new one based on superconducting radio-frequency cavities. The Accelerator Controls Operations Research Network (ACORN) Project will support LBNF/DUNE and PIP-II by modernizing the accelerator control system. The project is at the conceptual design phase and looking to achieve Critical Decision 1 (CD-1) later this year. The scope and structure of the project will be presented, along with an overview of how that has changed in the past year. Current design and technology choices will be shared. Specific challenges facing the project will be addressed, along with current thinking on solutions.
Paper: MOAG005
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-MOAG005
About: Received: 22 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUCR001
Integrating EPICS, OPC UA, and TSN: A Unified, AI-Ready Control Architecture for Particle Accelerators and Large Research Facilities
320
The increasing complexity and data demands of modern particle accelerator and large research facilities necessitate a paradigm shift towards unified, intelligent control system architectures. This paper proposes a study to enhance a particle accelerator control framework architecture in order to develop an AI-ready control system, drawing upon the strengths of both open-source and commercial control frameworks, on the basis of the IFMIF-DONES control design experience. By integrating the widely adopted Experimental Physics and Industrial Control System (EPICS) with industrial Supervisory Control and Data Acquisition (SCADA) systems via a key component –an OPC UA server for EPICS pvAccess– a seamless and standardized communication layer is established. This hybrid approach enhances flexibility, scalability, and long-term maintainability while leveraging the benefits of both ecosystems. Furthermore, the proposed architecture explores the potential of unifying traditionally separate networks, such as Timing, Control/Monitoring, and Interlock, through Time-Sensitive Networking (TSN) to simplify infrastructure and improve bandwidth utilization. This paper outlines the architectural design, discusses the advantages of this integrated approach in achieving AI readiness and improved interoperability, and highlights the role of a EPICS - OPC UA Gateway as a cornerstone for future advancements in accelerator control.
Paper: TUCR001
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUCR001
About: Received: 06 Sep 2025 — Revised: 27 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUCR002
Control system upgrades at the National Ignition Facility for higher laser energy and higher fusion yields
329
Following the landmark achievement of fusion ignition in December 2022, the National Ignition Facility (NIF) has now repeated ignition multiple times, reaching record yields and fusion gains. To further advance fusion research into new experimental regimes, NIF is currently planning the Enhanced Yield Capability (EYC) upgrade, raising laser energy to 2.6 MJ by fully utilizing the laser amplification potential of its design. Simulations predict EYC yields exceeding 30 MJ, enabling transformative opportunities for Inertial Confinement Fusion (ICF) and High-Energy-Density (HED) sciences. This paper focuses on the dual challenge of implementing EYC while sustaining aging control systems nearly two decades old. While the data-driven NIF control system architecture requires only modest modifications for higher laser energy, these still demand coordination with the sustainment of the pulse shaping, amplification, and optical damage mitigation subsystems. Upgrades must remain compatible with legacy interfaces and hybrid legacy-modern components while delivering enhanced performance for higher energies. We detail the technical approaches and operational strategies for integrating capability enhancement and component renewal in a facility with ongoing experiments, highlighting how well-planned design synergies minimize conflicts between major upgrades and sustainment efforts.
Paper: TUCR002
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUCR002
About: Received: 07 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 28 Oct 2025 — Issue date: 25 Nov 2025
TUCR003
Parallel control systems: an efficient and low risk approach for a migration from Vsystem to EPICS
336
For over 30 years, the AGOR cyclotron control system at UMCG PARTREC has relied on Vsystem. However, the limitations of Vsystem's aging technology stack hinder efforts to improve reliability. To address this, we have decided to migrate to EPICS. Given the limited IT resources at PARTREC, a cost-effective migration strategy is essential. Additionally, planned and unplanned accelerator downtime must be kept to an absolute minimum. Instead of the conventional approach of a gradual transition, we have opted for a different method: running both Vsystem and EPICS concurrently as fully configured control systems. During migration, all controllers will communicate with both systems simultaneously, ensuring continuity and minimizing downtime. This paper outlines the feasibility of this approach, its cost-effectiveness, and the proofs of concept conducted to validate its implementation.
Paper: TUCR003
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUCR003
About: Received: 05 Sep 2025 — Revised: 11 Sep 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUCR004
Control system considerations for LANSCE modernization and integration of the LAMP front-end
343
The Los Alamos Neutron Science Center (LANSCE) has embarked on a major modernization effort through the LANSCE Modernization Project (LAMP), which has recently received approval for mission need. LAMP proposes a new 100 MeV front end to replace aging components, including the proton sources, Cockcroft-Walton generators, and 100MeV drift tube linac. This new design will integrate with the existing cavity-coupled linac to reach the facility’s full design energy of 800 MeV, with full deployment anticipated by 2030. The modernization project introduces significant control system challenges, particularly in integrating new high-performance subsystems while maintaining full operability of the legacy infrastructure, which will remain responsible for approximately 85% of the accelerator complex. This paper discusses control system strategies for timing synchronization, high-speed data acquisition, and software integration. Key topics include compatibility between legacy and modern control protocols, deployment of real-time data systems, and software development to ensure operational continuity. The LANSCE control system must provide seamless support for both existing and modernized hardware, enabling efficient operation and long-term sustainability.
Paper: TUCR004
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUCR004
About: Received: 15 Sep 2025 — Revised: 16 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUMG001
Upgrade of the Los Alamos Neutron Science Center (LANSCE) Beam Chopper Pattern Generator
347
LANSCE delivers macropulses of beam, hundreds of microseconds in duration and at a nominal repetition rate of 120 Hz, to five experiment areas. These macropulses are distributed to four H⁻ areas and one H⁺ area. Each of the H⁻ experiment areas require a unique beam time structure within the macropulse. This time structure is imposed on the beam by a traveling wave chopper located in the H- Low Energy Beam Transport (LEBT) section of LANSCE. The chopper is driven by pulsed power systems which receive digital signals generated by the LANSCE chopper pattern generator. This chopper pattern generator system must maintain tight synchronization with multiple LANSCE RF reference signals and is triggered by the LANSCE master timer system. This paper describes a recent upgrade to the LANSCE chopper pattern generator from its original NIM/CAMAC/VXI form factor, including details in software and hardware, test results, and future plans.
Paper: TUMG001
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG001
About: Received: 12 Sep 2025 — Revised: 20 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUMG002
Accelerator Process Water Upgrade at ANL/APS
352
This presentation will describe recent hardware & software updates to the Accelerator Process Water System of the Advanced Photon Source at Argonne National Laboratory. The topics covered include replacing outdated PLC hardware, updating EPICS software (deploying a python application called ‘plcepics’ to build EPICS databases), and an overview of problems encountered during commissioning of the control system.
Paper: TUMG002
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG002
About: Received: 06 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 14 Oct 2025 — Issue date: 25 Nov 2025
TUMG003
The IRRAD Proton Irradiation Facility Data Management, Analytics, Control and Beam Diagnostic systems: current performance and outlook beyond the CERN LS3
356
The proton irradiation facility (IRRAD) at the CERN East Area was built in 2014 during the Long Shutdown 1 (LS1), and later improved during the LS2 (2019), to address the needs of the HL-LHC accelerator and detector upgrade projects. IRRAD, together with the CHARM facility on the same beamline, exploits the 24GeV/c proton beam of the Proton Synchrotron (PS) providing an essential service at CERN showcasing more than 4400 samples irradiated during the last decade. IRRAD is operated with precise custom-made irradiation systems, instrumentation for beam monitoring (IRRAD-BPM), operational GUIs (OPWT) and a dedicated data management tool (IDM) for experiments follow-up and samples traceability. Moreover, performance tracking generated by custom-made analytics tools (Jupyter, etc.) guarantees regular feedback to the PS operation, thus maximizing the beam availability for IRRAD. While the HL-LHC components qualification is coming to an end with the LS3 (2026-2028), new challenges arise for future detector, electronics components and material irradiations: reaching extremely high fluence levels, operating lower momenta or heavy ion beams, being some of those. In this context we first describe the last (software and hardware) improvements implemented at IRRAD after the LS2 and then present the challenges ahead that will drive future upgrades such as, for example, applying Machine Learning techniques to the IRRAD-BPM data aiming to achieve real-time automatic beam steering and control
Paper: TUMG003
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG003
About: Received: 09 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 22 Oct 2025 — Issue date: 25 Nov 2025
TUMG004
Development of an EtherCAT-based control system for an In-Vacuum Undulator for SPring-8-II
362
SPring-8, a third-generation light source, has operated for nearly three decades. Recently, light source accelerators have transitioned towards fourth-generation light sources, which implement low-emittance storage rings. Therefore, SPring-8 will upgrade its storage ring to a new one named SPring-8-II between 2027 and 2028. The upgrade involves implementing new Insertion Devices (IDs), specifically In-Vacuum Undulators for SPring-8-II (IVU-II), and optimizing accelerator control systems. As part of the control system upgrade for slow control, we are replacing VME-based systems with EtherCAT*-based systems**. Between 2023 and 2027, the schedule dictates the annual installation of three to a maximum of six IVU-IIs, and we will install EtherCAT control systems accordingly. Crucially, IVU-II control systems installed during the SPring-8 phase must be compatible with the varying operational parameters of SPring-8 and SPring-8-II. In 2024, we implemented the first EtherCAT-based control system, which satisfies the requirements. This system manages the gap between magnets and two power supplies for two steering magnets, monitors magnet temperatures and the vacuum system, and handles interlock signals. In the SPring-8-II era, dedicated systems such as the vacuum controls and the interlock system will handle vacuum and interlock functions, reallocating them from ID controls. Future ID controls will employ the EtherCAT model.
Paper: TUMG004
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG004
About: Received: 09 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUMG005
Continuous integration on top of the existing control system of LIPAc, for a RF conditioning test bench
366
Under the Broader Approach agreement between Japan and Europe, the Linear IFMIF Prototype Accelerator (LIPAc) aims the validation of the International Fusion Materials Irradiation Facility (IFMIF) accelerator design, to produce a deuteron beam of 125 mA at 9 MeV in continuous wave. In parallel to the installation of a superconductive linear acceleration stage, a high-power test bench was set up for the testing and conditioning of four pairs of radio-frequency (RF) couplers for LIPAc’s RF quadrupole*. Accordingly, the control systems (CS) part was implemented in parallel to the existing CS of LIPAc, benefiting from the tools available while avoiding their modification. Also, additional functionalities and devices were integrated to tackle the test bench specificities. This work was continuously performed during the operations of the test bench, identifying and answering further needs, such as deploying an automated conditioning tool, or enabling slow feedback loops for automatic parameter tuning. Furthermore, this test bench became a testing environment for the modifications foreseen in the LIPAc CS refurbishment plan, such as upgrading the CS framework to EPICS v7, switching to CS-Studio Phoebus and its applications for the operator interfaces, or using Debian 12 as the operating system and ProxMox 8 for the virtualization environment. The experience acquired here will be precious for the IFMIF-DONES Facility Project (DEMO-Oriented NEutron Source) implementation of IFMIF.
Paper: TUMG005
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG005
About: Received: 05 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUMG007
Development of GigE vision camera control system and applied to beam diagnostics for SPring-8 and NanoTerasu
372
As an imaging system supporting beam diagnostics using screen monitors (SCMs) at the SPring-8 site, we have continuously developed and improved a GigE Vision camera control system and expanded its adoption. By adopting the versatile open-source library Aravis, we eliminated vendor dependency and built an image acquisition system integrated into the SPring-8 control framework*, MADOCA 4.0. Key features include the ability to control up to eight GigE cameras per computer with centralized management of camera power, trigger distribution, and screen operations. Its long-distance cabling enables flexible and simple deployment. Operation is achieved by writing the configuration file without programming, significantly reducing development costs and time. As part of the SPring-8 upgrade, this system was successfully implemented for the SCMs of the beam transport line (XSBT) that uses the SACLA linac as the injector for the SPring-8 storage ring**. We expanded the application of this system to the SCMs of the SACLA linac and the SACLA-BL1 linac (SCSS+), replacing the complex and costly Camera Link cameras. We also newly applied it to NewSUBARU injector linac and NanoTerasu in Sendai. This presentation outlines the R&D of our GigE Vision camera control system for stability and enhancements, reporting on multi-facility deployment, operation, and stabilization efforts toward advanced utilization like automated beam parameter optimization from beam diagnostics using machine learning.
Paper: TUMG007
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG007
About: Received: 06 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUMG009
Update on migration to EPICS at the ISIS accelerators
377
The ISIS Neutron and Muon Facility accelerators are migrating to an EPICS control system. The tools developed to run two control systems in parallel and to automate the migration of hardware and user interfaces to EPICS have been previously presented. We now detail our emerging EPICS setup. Hardware interfaces are implemented as a mixture of conventional EPICS IOCs, in-house developed equivalents in Python, and bridged through our old control system. Our user interfaces are primarily the Phoebus stack but web interfaces in Python are being explored, particularly to support machine learning purposes such as automated optimisation and anomaly detection. We present issues which may arise at any site in transition, such as handling continuity of data archiving
Paper: TUMG009
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG009
About: Received: 09 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUMG010
SOLARIS synchrotron control system upgrade: addressing challenges and implementing solutions
383
The National Synchrotron Radiation Centre SOLARIS*, a 3rd Generation Synchrotron Light Source, stands as the most advanced research infrastructure in Poland. Since its commencement of operation in 2015, SOLARIS has undergone significant expansions. Initially, system upgrades were straightforward to implement. However, as the facility matured, new beamlines were created, and the number of equipment increased significantly. This led to a rise in the complexity of upgrades, prompting the SOLARIS team to focus on creating automation tools for deployments and maintaining up-to-date libraries and software. During this period, many versions of libraries, such as Python and PyQt, as well as the CentOS operating system, became obsolete, leading to increased maintenance costs. To address these challenges, a comprehensive strategy was developed. This strategy includes transitioning from CentOS 6 and 7 to AlmaLinux 9, upgrading older versions of Python to version 3.9, and updating automation tools such as Ansible and GitLab CI/CD. This paper presents the methodology employed for the control system upgrade, detailing the architecture of the new system, the upgrade process, and the challenges encountered.
Paper: TUMG010
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG010
About: Received: 06 Sep 2025 — Revised: 29 Oct 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUMG012
Embracing the accelerator computing revolution at SLAC
386
We face a number of challenges in planning future controls and computing for large accelerator facilities. This paper concentrates on how radical changes in use of machine-learning, beam modelling, and big data for online tuning and accelerator physics, are changing the architectures of controls, cyber-security, and laboratory enterprise high performance computing at SLAC. We look briefly at those challenges and then concentrate on activities under way at SLAC to plan and implement a roadmap to meet them.
Paper: TUMG012
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG012
About: Received: 22 Oct 2025 — Revised: 07 Nov 2025 — Accepted: 07 Nov 2025 — Issue date: 25 Nov 2025
TUMG013
Control software and technology choices for the electron-ion collider
390
The Electron-Ion Collider (EIC) will succeed the current Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. For over two decades, RHIC and its injectors have relied on a homegrown Accelerator Device Object (ADO)-based control system, which has provided a reliable and efficient operational framework. However, the EIC’s requirements—such as a greater number of subsystems, higher uptime, increased data rates, and other factors—demand significant enhancements. Advances in both hardware and software technologies since the RHIC era have expanded the range of available options, each with its own set of benefits and challenges. In response, the EIC plans to deploy state-of-the-art technologies to meet these elevated demands, favoring open-source and community-driven solutions wherever feasible. This talk will focus on the control software and the technology choices under consideration and the strategies being adopted for the EIC.
Paper: TUMG013
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG013
About: Received: 06 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 29 Oct 2025 — Issue date: 25 Nov 2025
TUMG014
New L2SI dynamic reaction microscope endstation in TMO: control system design, installation and integration
394
To take advantage of the world's most powerful X-ray beam delivered by the LCLS-II project, the former Atomic, Molecular & Optical Science (AMO) instrument at the SLAC Linac Coherent Light Source (LCLS) user facility has been upgraded to the Time-resolved AMO (TMO) instrument by the L2SI project. The new Dynamic Reaction Microscope (DREAM) endstation, also covered by the L2SI project and located at the second interaction point of the TMO, will offer unique capabilities to support cutting-edge research in the fundamental science of matter and energy. This talk provides an in-depth overview of the control systems for the DREAM endstation, detailing its architecture, design methodology, implementation, and seamless integration with the broader LCLS control infrastructure. It will also address the key challenges, including integrating SmarACT motion control systems with the X-ray Machine Protection System (MPS) across different platforms, developing a robust and flexible equipment protection system, and implementing automated vacuum controls to meet stringent reliability and operational requirements.
Paper: TUMG014
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG014
About: Received: 12 Sep 2025 — Revised: 30 Sep 2025 — Accepted: 04 Nov 2025 — Issue date: 25 Nov 2025
TUPD001
Modernizing the RF control systems at the Advanced Photon Source
498
The Advanced Photon Source (APS) recently completed a significant upgrade to its storage ring, replacing all existing components with new ones. However, the RF systems and their control mechanisms were not part of this upgrade. The APS operates four RF systems: the Linac, the Particle Accumulator Ring (PAR), the Booster Ring, and the Storage Ring. These systems have traditionally relied on analog controls utilizing a combination of VME/VXI and Allen-Bradley PLC5 hardware, which are now obsolete. This paper discusses the ongoing transition to digital controls, the integration of new RF hardware, and the progress achieved thus far.
Paper: TUPD001
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD001
About: Received: 27 Aug 2025 — Revised: 28 Aug 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUPD002
APS-U storage ring power supply interlock and temperature monitoring control system
502
The Advanced Photon Source (APS) is a third-generation synchrotron light source at Argonne National Laboratory. The APS Upgrade (APS-U) storage ring power supply interlock and temperature monitoring system plays an important role for personal and equipment safety. The system utilizes the Experimental Physics and Industrial Control System (EPICS) input/output controllers (IOCs) to interface with remote programmable logic controllers (PLCs) for controlling the storage ring power supply interlock system and monitoring various equipment temperatures. This paper will present how the system is implemented and operating successfully.
Paper: TUPD002
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD002
About: Received: 05 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 14 Oct 2025 — Issue date: 25 Nov 2025
TUPD003
Control system upgrade of Argonne Wakefield Accelerator facility
506
As the Argonne Wakefield Accelerator (AWA) facility expanded, its original in-house control software could not keep up with the increasing complexity and scale of operations. To improve maintainability, reliability, and support future development, the AWA controls group undertook a major upgrade by adopting the Experimental Physics and Industrial Control System (EPICS). With support from the Advanced Photon Source (APS) Controls group, the AWA control system has been successfully upgraded from a centralized, difficult-to-maintain architecture into a flexible, scalable, and maintainable distributed system. This paper presents the current status of AWA's new EPICS-based control system and describes the experiences and lessons learned during the upgrade.
Paper: TUPD003
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD003
About: Received: 21 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD004
Accelerator Process Water Upgrade at ANL/APS
use link to access more material from this paper's primary code
This presentation will describe recent hardware & software updates to the Accelerator Process Water System of the Advanced Photon Source at Argonne National Laboratory. The topics covered include replacing outdated PLC hardware, updating EPICS software (deploying a python application called ‘plcepics’ to build EPICS databases), and an overview of problems encountered during commissioning of the control system.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG002
About: Received: 06 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 14 Oct 2025 — Issue date: 25 Nov 2025
TUPD005
Control software and technology choices for the electron-ion collider
use link to access more material from this paper's primary code
The Electron-Ion Collider (EIC) will succeed the current Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. For over two decades, RHIC and its injectors have relied on a homegrown Accelerator Device Object (ADO)-based control system, which has provided a reliable and efficient operational framework. However, the EIC’s requirements—such as a greater number of subsystems, higher uptime, increased data rates, and other factors—demand significant enhancements. Advances in both hardware and software technologies since the RHIC era have expanded the range of available options, each with its own set of benefits and challenges. In response, the EIC plans to deploy state-of-the-art technologies to meet these elevated demands, favoring open-source and community-driven solutions wherever feasible. This talk will focus on the control software and the technology choices under consideration and the strategies being adopted for the EIC.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG013
About: Received: 06 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 29 Oct 2025 — Issue date: 25 Nov 2025
TUPD006
Technical design concept and development of the new accelerator control and timing systems for PETRA IV
509
At DESY, extensive technical design and prototyping work is currently underway to upgrade the PETRA III synchrotron light source to PETRA IV, a fourth-generation low-emittance machine. The realization of the new machine necessitates a redesign of the accelerator’s control and timing systems. The primary hardware components will be based on the MTCA.4 standard, which has established itself as a reliable platform at DESY. The control system framework will be modernized to accommodate the demands of a fourth-generation light source. This paper presents the key decisions made in this context and provides an overview of the design and development process.
Paper: TUPD006
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD006
About: Received: 05 Sep 2025 — Revised: 26 Sep 2025 — Accepted: 14 Oct 2025 — Issue date: 25 Nov 2025
TUPD008
Motion control systems for insertion devices in Diamond-II
518
Diamond light source has been operating since 2007, and currently has 26 motion-controlled insertion devices that produce synchrotron light for the majority of the 36 beamlines in operation. The Diamond-II upgrade will reduce the emittance, increase the energy of the electron beam, increase the number of straights available, and includes the delivery of three flagship beamlines. As a part of delivering Diamond-II we plan to build and procure 12 new insertion devices of which 10 will be motion-controlled using in-house designed and built control systems. We also plan to upgrade three control systems to manage obsolescence and enable software upgrades. This paper describes the various generations of motion control systems present, and outlines the upgrade plans, controls challenges, and special requirements.
Paper: TUPD008
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD008
About: Received: 05 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD009
Integrated data acquisition and processing pipelines for users at Elettra 2.0: a case study at SYRMEP, the μCT beamline
523
Elettra, the Italian Synchrotron in Trieste, is about to undergo a major upgrade of the facility. To effectively exploit such improvement, data acquisition and processing are being integrated into single automated pipelines, subject to a facility-wide standard and yet flexible enough to accommodate the specific usage at each beamline. The entire procedure of data acquisition and processing spans a vast ecosystem of different structures and frameworks, which are being standardized across the whole facility: the GeCo control system, handling the safety and the operation of the beamlines; the TANGO Controls framework, that allows distributed control of the data acquisition process; the architecture of data storage and processing, whose accessibility is mediated by VUO, the Elettra unified portal; a modular adaptive processing infrastructure (MAPI) for analysis workflows; and an overview of the data lake data@Elettra. The intertwining of all these components results in the integrated pipeline experienced by the users. The acquisition/processing sequence presently in place at SYRMEP, the microtomography beamline, is presented as a case study of the standard structure that is being designed. Beamline and acquisition control, on-the-fly and post-acquisition processing are described in the light of the general landscape proposed for Elettra 2.0, the upgraded facility.
Paper: TUPD009
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD009
About: Received: 21 Aug 2025 — Revised: 22 Aug 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD010
Upgrade of the control systems for the CERN LHC gas system distribution modules
527
At the experiments of the CERN Large Hadron Collider (LHC), 31 gas systems are used to deliver a precise gas mixture to the corresponding detectors with high reliability and availability*. The Distribution Modules of these gas systems control and monitor gas flow and pressure across thousands of channels. The Embedded Local Monitor Board (ELMB), an I/O board using the CANopen communication protocol**, is used to read the flow and pressure sensors. After years of operation, the PLC hardware and software of most of the Distribution Modules have become obsolete, raising the need for complex support and impeding improvements. This led to a comprehensive upgrade which was first tested on a retired LHC gas system and subsequently deployed on the production gas system of the MDT detector in the ATLAS experiment. The upgrade allowed the addition of several features, for instance the reporting of detailed sensor error codes and diagnostic information about the ELMBs. System maintainability and upgradability were improved, ensuring uninterrupted operation for the upcoming years of LHC operation.
Paper: TUPD010
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD010
About: Received: 06 Sep 2025 — Revised: 09 Sep 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUPD011
Active magnetic bearings electronic system upgrade for CERN’s (HL)-LHC cryogenic 1.8 K cold compressor units
532
The Large Hadron Collider (LHC) at CERN relies on superfluid helium, supplied by eight large refrigeration units, each providing 2.4 kW at 1.8 K. These units, developed by specialized cryogenic industrial suppliers, consist of serial hydrodynamic cold compressors equipped with axial-centrifugal impellers and Active Magnetic Bearings (AMB), coupled with volumetric warm screw compressors. The AMB electronic units, delivered by suppliers, have been in reliable operation for over 20 years. As part of the CERN consolidation project, the need to meet evolving LHC cryogenic operational requirements—along with the obsolescence of electronic components—has driven the upgrade of the entire electronic and electrical control system. A step-by-step analysis, beginning with an operational risk assessment, led to the design and development of a prototype. This effort was undertaken at CERN in collaboration with the French company SKF Magnetic Mechatronics. The prototype underwent extensive testing, first in a dedicated CERN cold compressor test bench and later in real-system operation, where it was successfully validated. This paper presents the complete upgrade process, the positive test results obtained, and the outlook for full deployment during the LHC Long Shutdown 3 (2026–2029).
Paper: TUPD011
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD011
About: Received: 29 Aug 2025 — Revised: 18 Sep 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUPD012
A new PLC based control system to orchestrate the PS main power converters
536
The Power for the PS (POPS) system supplies the Proton Synchrotron (PS) magnets by exchanging energy between capacitor banks and magnet loads, minimizing direct power draw from the electrical network. The POPS+ upgrade improves availability through redundancy by integrating additional power converters, introducing a new PLC-based control system to manage increased complexity and to retrofit legacy turnkey controls infrastructure. This distributed architecture features a central PLC orchestrating all power converters and their FGC4-based controllers. The PLC enables the custom integration of the FGC4 platform, originally designed for generic converters, into POPS+. A key challenge is the implementation of a real-time Ethernet communication protocol (FGC4PN) on a Multi-Functional Platform (MFP) attached to the PLC. The PLC also manages the state machine, including startup, charging and stopping sequences, as well as interlocks and safe start conditions, leveraging CERN’s UNICOS framework for standardized control and SCADA supervision. This paper presents the design and implementation of the control system, detailing the distributed architecture and the communication strategies. It also highlights the use of the Hardware-in-the-Loop (HIL) simulation platform for the system integration, development and virtual commissioning.
Paper: TUPD012
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD012
About: Received: 05 Sep 2025 — Revised: 17 Sep 2025 — Accepted: 18 Sep 2025 — Issue date: 25 Nov 2025
TUPD013
The IRRAD Proton Irradiation Facility Data Management, Analytics, Control and Beam Diagnostic systems: current performance and outlook beyond the CERN LS3
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The proton irradiation facility (IRRAD) at the CERN East Area was built in 2014 during the Long Shutdown 1 (LS1), and later improved during the LS2 (2019), to address the needs of the HL-LHC accelerator and detector upgrade projects. IRRAD, together with the CHARM facility on the same beamline, exploits the 24GeV/c proton beam of the Proton Synchrotron (PS) providing an essential service at CERN showcasing more than 4400 samples irradiated during the last decade. IRRAD is operated with precise custom-made irradiation systems, instrumentation for beam monitoring (IRRAD-BPM), operational GUIs (OPWT) and a dedicated data management tool (IDM) for experiments follow-up and samples traceability. Moreover, performance tracking generated by custom-made analytics tools (Jupyter, etc.) guarantees regular feedback to the PS operation, thus maximizing the beam availability for IRRAD. While the HL-LHC components qualification is coming to an end with the LS3 (2026-2028), new challenges arise for future detector, electronics components and material irradiations: reaching extremely high fluence levels, operating lower momenta or heavy ion beams, being some of those. In this context we first describe the last (software and hardware) improvements implemented at IRRAD after the LS2 and then present the challenges ahead that will drive future upgrades such as, for example, applying Machine Learning techniques to the IRRAD-BPM data aiming to achieve real-time automatic beam steering and control
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG003
About: Received: 09 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 22 Oct 2025 — Issue date: 25 Nov 2025
TUPD014
Installation and commissioning progress of the 2PACL CO2 cooling control systems for Phase II upgrade of the ATLAS and CMS experiments
542
In the scope of the High Luminosity Program of the Large Hadron Collider at CERN, the ATLAS and CMS experiments are progressing in the installation and commissioning of their environmentally friendly low temperature detector cooling systems for their new trackers, calorimeters and timing detectors. The selected “on-detector” cooling solution is the CO2 pumped loop concept which is the evolution of the successful 2PACL technique allowing for oil-free, stable, low-temperature control. These systems are of unprecedented scale and largely more complex for both mechanics and controls than installations of today. This paper will present a control system overview, applied PLC architecture and the installation and commissioning progress achieved by the EP-DT group at CERN over the last years. We will describe in detail homogenised solutions which spreads between surface and underground and have been applied for future CO2 cooling systems for silicon detectors at ATLAS and CMS. We will describe in detail applied multi-level redundancy for electricity distribution, mechanics and controls. We will discuss numerous controls-related solutions deployed for electrical design organization, instrumentation selection and PLC programming. We will finally present how we organised early control system commissioning as initial step for LHC Long Shut down 3.
Paper: TUPD014
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD014
About: Received: 03 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 14 Oct 2025 — Issue date: 25 Nov 2025
TUPD015
Consolidation of the state control and surveillance system of the LHC Beam Dump system
547
The Large Hadron Collider (LHC) Beam Dump System (LBDS) includes 15 extraction kickers (MKD) and 10 dilution kickers (MKB), each powered by a High Voltage Pulse Generator (HVPG), controlled by the State Control and Surveillance System (SCSS) based on industrial PLC technology. After almost 20 years of reliable operation, a consolidation of the LBDS SCSS is planned for deployment during the Long Shutdown 3 (LS3 2026–2029), to meet the demand of increased diagnostics, functionalities, and guarantee component longevity until the end of LHC operation (2041). This paper describes the analysis conducted through a detailed review of the existing hardware, software, network layers, and ageing fieldbus components. It presents the motivations for modernizing the SCSS and the new control architecture with the improvement on the safety-functionalities implemented. It provides an overview of the new system's interlock state machine with its integration in CERN control middleware.
Paper: TUPD015
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD015
About: Received: 05 Sep 2025 — Revised: 23 Sep 2025 — Accepted: 28 Oct 2025 — Issue date: 25 Nov 2025
TUPD016
Online analysis for kicker missing pulse diagnosis
552
The PS beam extraction system includes 12 kicker magnet modules, nine in section 71 and three in section 79, designed to deliver full kick strength for ejecting a 28 GeV/c beam. Since 2020, sporadic missing pulses caused by aging HV generators linked to old electronic control equipment have reduced performance and have been challenging to diagnose. This led to the development of a Missing Pulse Detection Analyser to assist expert diagnostics. Started in 2021, the offline tool correlates kick pulse waveforms with timing data logged in CERN’s data logging system (NXCALS), providing an analytical and statistical overview. It has since become an online pulse-to-pulse analyzer that uses data from post-mortem acquisition, the Internal Timing System, and the Generator State Controller, all accessed through Front-End Software Application (FESA) classes. A compact feed-forward neural network, added in 2024, improves early detection of waveform deviations and missing pulse patterns. Developed in Python within CERN’s Unified Control Application framework (UCAP), the analyzer interfaces seamlessly with FESA and the Java API for Parameter Control (JAPC), publishing diagnostics through control middleware. This paper details its architecture and initial deployment on the PS Complex (KFA71/79), highlighting operational experience, diagnostic advantages, and plans for integration within the Efficient Particle Accelerator (EPA) framework, including expansion to additional subsystems for the upcoming control consolidation during the 2026 long shutdown.
Paper: TUPD016
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD016
About: Received: 05 Sep 2025 — Revised: 26 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD017
Real-Time control system upgrade of the CERN Linac4 pre-chopper
558
The CERN Linac4 pre-chopper, installed right after the H- ion source in the Low Energy Beam Transport (LEBT) section, plays a crucial role in providing the 45 keV H- beam to the first accelerating structure, the Radio Frequency Quadrupole (RFQ). By applying a pulsed electric field of -20 kV, the pre-chopper deflects the beam when not required and sharps its head and tail in order to remove the long rise time of the source and avoid transmission losses. The existing pre-chopper controller was implemented in 2015 using National Instruments (NI) LabVIEW and PXIe hardware, relying on their proprietary Real-Time (RT) operating system (Phar Lap) and a secondary Linux Front-End Computer (FEC) for the integration in the CERN control system. Phar Lap is EOL since 2025 and will be discontinued during the upcoming Long Shutdown 3 (LS3). This paper presents an upgrade of the control system, aimed at replacing the LabVIEW-RT control layer with standard CERN solutions, leveraging the new Debian-based Linux RT OS, Front-End Computer Operating System (FECOS), and consolidating all functionalities into a single computer. The goal was achieved using the CERN Front-End Software Architecture (FESA) 3 framework and C++ libraries to interface with the NI hardware via NI Linux drivers deployed on FECOS. A new PyQt-based graphical user interface will be developed to ease system monitoring and operation. Installation of the upgraded system is expected for LS3, using a custom PXIe crate and CPU from CERN instead of NI solutions.
Paper: TUPD017
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD017
About: Received: 05 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD019
Controls of the new eddy current septum for the CERN PS fast extraction
563
The CERN PS fast extraction septum deflects protons and ions towards the experimental areas of the PS complex and the SPS. With the increased number of extractions per year since it was first put into service in 1994, the magnet lifetime is nowadays estimated at two years, implying bi-annual rebuilds of the septum, significant costs, and non-negligible radiation doses taken by personnel. Additionally, the present power converter is approaching its end-of-life. In view of its superior robustness, an eddy current septum system was chosen to replace the original direct-drive septum. Due to the different technology of the magnet, the existing power converter is replaced by a new fast pulse generator, which implies a complete new control system. This paper describes the different units and functionalities of this new control system, covering a wide range of technologies such as high-voltage switch triggering modules, slow interlocks based on PLC, fast interlocks and timing implemented in FPGAs, temperature-compensated acquisition chains, and software-based regulation algorithms. Preliminary results of the system performance are also presented.
Paper: TUPD019
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD019
About: Received: 05 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUPD021
CERN SCADA systems 2024 large upgrade campaign retrospective
567
This paper presents a recent upgrade campaign of supervisory control systems within CERN's Accelerator and Technologies Sector. The effort covered over 240 WinCC OA SCADA applications across more than 120 servers, spanning core accelerator systems such as Power Converters, the Quench Protection System, and the Power Interlock Controller, along with essential technical infrastructure including Cryogenics, Vacuum, and Gas Control. These systems are crucial for machine protection, performance, and the reliable operation of the accelerator complex. Building on experience from previous upgrade efforts, this campaign introduced important advances in automation and process optimization. For the first time, a fully unattended upgrade workflow was achieved through the use of Ansible. In addition the campaign involved a major operating system migration and the upgrade of several supporting satellite systems. This paper details the improvements made in this iteration, discusses the challenges and compares the current campaign with earlier ones. The analysis highlights the evolution of automation strategies and reflects on both successes and difficulties. The work offers valuable insights for future upgrade initiatives and demonstrates how automation tools can significantly enhance the maturity and reliability of large-scale software maintenance in complex operational environments.
Paper: TUPD021
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD021
About: Received: 04 Sep 2025 — Revised: 18 Sep 2025 — Accepted: 29 Oct 2025 — Issue date: 25 Nov 2025
TUPD022
Progress update on the superconducting undulator control system for the European XFEL
571
This paper presents an update to the work previously published in [1]. Since the initial report, significant progress has been made within the European XFEL development program. The control rack for the first superconducting undulator (SCU) prototype, known as the S-PRESSO (S-PRE-SerieS Prototype), has been produced and is currently undergoing commissioning at the European XFEL. In parallel, the commissioning of both main and auxiliary power supplies is in progress. Furthermore, the architecture of the global control system, which will integrate all components of the SCU, has been finalised. This paper provides an overview of the current status of the S-PRESSO control system and outlines the next steps toward full integration into the existing permanent-magnet undulator (PMU) system.
Paper: TUPD022
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD022
About: Received: 06 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUPD023
Supporting injector operation with the FAIR settings management system
576
The FAIR Settings Management System is in productive use at the GSI accelerator facility. The core of the system is developed in collaboration with CERN and is based on CERN’s Software Architecture (LSA) framework. It is currently used at GSI for operating the synchrotrons, storage rings, and transfer lines. As part of the Injector Controls Upgrade project, which aims to integrate the Unilac linear accelerator into the new control system, concepts for scheduling parallel particle beams are being further realized. In preparation for the integration of the FAIR facility, existing concepts are being reviewed, refined and implemented. A key milestone for the upcoming implementation steps is the operation of Unilac with the new control system during the beam time 2026, with preparatory beam tests starting in summer 2025. This paper describes the current implementation status.
Paper: TUPD023
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD023
About: Received: 06 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUPD024
A Python-based serial communication framework for legacy PMAC controllers
582
Many beamlines at BESSY-II still operate using VME-crate-based PMAC motor controllers that rely on proprietary Windows software for communication and configuration. However, these programs often require old licenses and are not compatible with modern operating systems, making maintenance increasingly difficult. To address this, we have developed an open-source Python tool that communicates with legacy PMAC controllers over serial interfaces. The tool uses a modular manager-client architecture where multiple client programs can send commands concurrently without conflicts, using a managed queue and locking system. Dedicated clients have been created for terminal interaction, batch upload of command files, watch window monitoring and plotting of PMAC variables with configurable fetch and display intervals. The programs are lightweight, installed via Python package management, and accessible through simple command-line interfaces. While the serial communication is not real-time, it is sufficient for configuration, monitoring, and motion program uploads. Extensive logging is provided for traceability. A muti-tabbed GUI with plotting and data saving feature is implemented for better usability. Future developments include integration into the broader framework to support newer motor controllers. This tool provides a modern, open-source alternative for maintaining legacy motion control systems and ensures continued support without reliance on outdated commercial software.
Paper: TUPD024
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD024
About: Received: 04 Sep 2025 — Revised: 17 Sep 2025 — Accepted: 18 Sep 2025 — Issue date: 25 Nov 2025
TUPD025
Continuous integration on top of the existing control system of LIPAc, for a RF conditioning test bench
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Under the Broader Approach agreement between Japan and Europe, the Linear IFMIF Prototype Accelerator (LIPAc) aims the validation of the International Fusion Materials Irradiation Facility (IFMIF) accelerator design, to produce a deuteron beam of 125 mA at 9 MeV in continuous wave. In parallel to the installation of a superconductive linear acceleration stage, a high-power test bench was set up for the testing and conditioning of four pairs of radio-frequency (RF) couplers for LIPAc’s RF quadrupole*. Accordingly, the control systems (CS) part was implemented in parallel to the existing CS of LIPAc, benefiting from the tools available while avoiding their modification. Also, additional functionalities and devices were integrated to tackle the test bench specificities. This work was continuously performed during the operations of the test bench, identifying and answering further needs, such as deploying an automated conditioning tool, or enabling slow feedback loops for automatic parameter tuning. Furthermore, this test bench became a testing environment for the modifications foreseen in the LIPAc CS refurbishment plan, such as upgrading the CS framework to EPICS v7, switching to CS-Studio Phoebus and its applications for the operator interfaces, or using Debian 12 as the operating system and ProxMox 8 for the virtualization environment. The experience acquired here will be precious for the IFMIF-DONES Facility Project (DEMO-Oriented NEutron Source) implementation of IFMIF.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG005
About: Received: 05 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 31 Oct 2025 — Issue date: 25 Nov 2025
TUPD027
SOLARIS synchrotron control system upgrade: addressing challenges and implementing solutions
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The National Synchrotron Radiation Centre SOLARIS*, a 3rd Generation Synchrotron Light Source, stands as the most advanced research infrastructure in Poland. Since its commencement of operation in 2015, SOLARIS has undergone significant expansions. Initially, system upgrades were straightforward to implement. However, as the facility matured, new beamlines were created, and the number of equipment increased significantly. This led to a rise in the complexity of upgrades, prompting the SOLARIS team to focus on creating automation tools for deployments and maintaining up-to-date libraries and software. During this period, many versions of libraries, such as Python and PyQt, as well as the CentOS operating system, became obsolete, leading to increased maintenance costs. To address these challenges, a comprehensive strategy was developed. This strategy includes transitioning from CentOS 6 and 7 to AlmaLinux 9, upgrading older versions of Python to version 3.9, and updating automation tools such as Ansible and GitLab CI/CD. This paper presents the methodology employed for the control system upgrade, detailing the architecture of the new system, the upgrade process, and the challenges encountered.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG010
About: Received: 06 Sep 2025 — Revised: 29 Oct 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
TUPD028
Development of GigE vision camera control system and application to beam diagnostics for SPring-8 and NanoTerasu
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As an imaging system supporting beam diagnostics using screen monitors (SCMs) at the SPring-8 site, we have continuously developed and improved a GigE Vision camera control system and expanded its adoption. By adopting the versatile open-source library Aravis, we eliminated vendor dependency and built an image acquisition system integrated into the SPring-8 control framework*, MADOCA 4.0. Key features include the ability to control up to eight GigE cameras per computer with centralized management of camera power, trigger distribution, and screen operations. Its long-distance cabling enables flexible and simple deployment. Operation is achieved by writing the configuration file without programming, significantly reducing development costs and time. As part of the SPring-8 upgrade, this system was successfully implemented for the SCMs of the beam transport line (XSBT) that uses the SACLA linac as the injector for the SPring-8 storage ring**. We expanded the application of this system to the SCMs of the SACLA linac and the SACLA-BL1 linac (SCSS+), replacing the complex and costly Camera Link cameras. We also newly applied it to NewSUBARU injector linac and NanoTerasu in Sendai. This presentation outlines the R&D of our GigE Vision camera control system for stability and enhancements, reporting on multi-facility deployment, operation, and stabilization efforts toward advanced utilization like automated beam parameter optimization from beam diagnostics using machine learning.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG007
About: Received: 06 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUPD029
Development of an EtherCAT-based control system for an In-Vacuum Undulator for SPring-8-II
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SPring-8, a third-generation light source, has operated for nearly three decades. Recently, light source accelerators have transitioned towards fourth-generation light sources, which implement low-emittance storage rings. Therefore, SPring-8 will upgrade its storage ring to a new one named SPring-8-II between 2027 and 2028. The upgrade involves implementing new Insertion Devices (IDs), specifically In-Vacuum Undulators for SPring-8-II (IVU-II), and optimizing accelerator control systems. As part of the control system upgrade for slow control, we are replacing VME-based systems with EtherCAT*-based systems**. Between 2023 and 2027, the schedule dictates the annual installation of three to a maximum of six IVU-IIs, and we will install EtherCAT control systems accordingly. Crucially, IVU-II control systems installed during the SPring-8 phase must be compatible with the varying operational parameters of SPring-8 and SPring-8-II. In 2024, we implemented the first EtherCAT-based control system, which satisfies the requirements. This system manages the gap between magnets and two power supplies for two steering magnets, monitors magnet temperatures and the vacuum system, and handles interlock signals. In the SPring-8-II era, dedicated systems such as the vacuum controls and the interlock system will handle vacuum and interlock functions, reallocating them from ID controls. Future ID controls will employ the EtherCAT model.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG004
About: Received: 09 Sep 2025 — Revised: 21 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUPD030
Design and commissioning of the upgraded ALS SR RF cavity water control system
587
The Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory, a pioneering third-generation synchrotron light source, has been operational since 1992. The ALS storage ring RF cavity water control system, originally a 30-year-old relay-based chassis system, regulated the temperature of the two storage ring RF cavities while managing interlocks and operational functions. Aging instrumentation and the need for enhanced features, however, led to operational challenges. To address these issues, the system was upgraded to a PLC-based solution. This paper presents the design and commissioning results of the upgraded cavity water control system.
Paper: TUPD030
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD030
About: Received: 06 Sep 2025 — Revised: 11 Sep 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUPD031
ALS storage ring RF control system upgrade plan and status
590
The Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory, a third-generation synchrotron light source operational since 1992, is undergoing a comprehensive upgrade of its storage ring RF control system. The legacy Horner PLC controllers and remote I/O modules, now at end-of-life, are being replaced with an Allen-Bradley PLC platform to improve maintainability, reliability, and long-term support. This paper presents the planning, design, and current status of the upgrade project.
Paper: TUPD031
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD031
About: Received: 06 Sep 2025 — Revised: 11 Sep 2025 — Accepted: 17 Oct 2025 — Issue date: 25 Nov 2025
TUPD032
Upgrading the ALS beamline equipment protection system: software development and implementation
594
The Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory, a third-generation synchrotron light source, has been in continuous operation since 1992. The ALS beamline equipment protection system is being upgraded by replacing legacy end-of-life Modicon PLCs with Allen-Bradley PLCs. This paper presents the software architecture of the upgraded system, highlighting the Allen-Bradley PLC programming approach and the development of the EPICS database that integrates the protection system into the facility’s control system infrastructure.
Paper: TUPD032
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD032
About: Received: 04 Sep 2025 — Revised: 16 Sep 2025 — Accepted: 21 Oct 2025 — Issue date: 25 Nov 2025
TUPD033
Upgrading hardware and software for the LANSCE PSR ExBPM with FPGA based high speed digitizers
597
This paper presents the current approach to upgrade the readout instrumentation for the Proton Storage Ring (PSR) Extraction Line Beam Position Monitor System (ExBPMs) that are located between PSR and Lujan center Target at the Los Alamos Neutron Science center (LANSCE) accelerator. National Instrument’s PXIe platform with high-speed digitizers have been chosen as the hardware which will replace the original CAMAC/NIM/VME system which is obsolete. The beam position algorithm for this project has been demonstrated with the slower real-time Labview software using NI-Scope. The software is currently being written and tested using Labview FPGA to make the position processing algorithm match the acquisition speed. The beam position algorithm is designed to handle larger data streams so that it can also be used on the LANSCE Linac BPMs. FPGA design of the algorithm is inherently complex and requires multiple interacting factors such as the LinuxRT OS and supporting packages deployed on the PXIe. (LA-UR-25-23748)
Paper: TUPD033
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD033
About: Received: 10 Sep 2025 — Revised: 16 Sep 2025 — Accepted: 18 Sep 2025 — Issue date: 25 Nov 2025
TUPD034
Homogenizing a control system with a long history
602
The LANSCE Accelerator is over 50 years old, the original control system was fully replaced with an EPICS control system a few years ago. However, the upgrade process was slow, and the "new" control system has processor boards that are 30 years old, as well as new soft-core FPGA processors. We have eliminated VXI and almost eliminated CAMAC crates, but also have VME, VME64, cPCI, and VPX. The control system uses 4 types of VME processor boards and 3 real-time operating systems. The diversity in the control system makes it difficult for new personnel to support everything, as well as making maintenance more difficult. We are in the process of consolidating to fewer hardware platforms and rewriting software that has incurred too much technical debt, while also developing new replacement technologies for upgrade projects. Most of our hardware I/O has been converted to compact RIO based systems. Our timing system cards are either VME or cPCI. VME has had a very long support life, VPX also looks promising for a long support lifetime. We are currently planning to develop a solution with an IP-based event receiver so that it will be easier to migrate to new commercial off-the shelf FPGA boards. We are also hoping to move away from VxWorks. Newer device support is being converted to operating system independent software using asynPortDriver. Simplifying the hardware and software is the key to sustainable maintenance.
Paper: TUPD034
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD034
About: Received: 10 Sep 2025 — Revised: 19 Sep 2025 — Accepted: 22 Oct 2025 — Issue date: 25 Nov 2025
TUPD036
Upgrade of the Los Alamos Neutron Science Center (LANSCE) Beam Chopper Pattern Generator
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LANSCE delivers macropulses of beam, hundreds of microseconds in duration and at a nominal repetition rate of 120 Hz, to five experiment areas. These macropulses are distributed to four H⁻ areas and one H⁺ area. Each of the H⁻ experiment areas require a unique beam time structure within the macropulse. This time structure is imposed on the beam by a traveling wave chopper located in the H- Low Energy Beam Transport (LEBT) section of LANSCE. The chopper is driven by pulsed power systems which receive digital signals generated by the LANSCE chopper pattern generator. This chopper pattern generator system must maintain tight synchronization with multiple LANSCE RF reference signals and is triggered by the LANSCE master timer system. This paper describes a recent upgrade to the LANSCE chopper pattern generator from its original NIM/CAMAC/VXI form factor, including details in software and hardware, test results, and future plans.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG001
About: Received: 12 Sep 2025 — Revised: 20 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
TUPD037
Modernizing control system for klystron test stand at LANSCE
605
Modernizing scientific test stands is essential for improving data acquisition, control precision, and integration with contemporary research workflows. This paper presents our approach to upgrading the legacy klystron test stand at Los Alamos Neutron Science Center (LANSCE) by implementing EPICS (Experimental Physics and Industrial Control System) for real-time control and monitoring, as well as an overhaul of the diagnostic hardware systems. The transition to EPICS enables scalable, network-distributed control, standardizes communication protocols, and enhances compatibility with the rest of LANSCE’s control systems. The improved control system provides intuitive, customizable interfaces for experiment configuration, live visualization, and automated data logging. This upgrade significantly increases maintainability, user accessibility, and automation capabilities, while reducing system downtime and improving experimental reproducibility. The work demonstrates a practical, extensible model for upgrading test infrastructure in research environments where flexibility, openness, and precision are essential. LA-UR-25-24511
Paper: TUPD037
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD037
About: Received: 13 Sep 2025 — Revised: 18 Sep 2025 — Accepted: 29 Oct 2025 — Issue date: 25 Nov 2025
TUPD039
Assessing WinCC OA project limits to guide DCS architecture for the Phase-II ATLAS upgrade
612
In preparation for the Phase-2 upgrade of the ATLAS experiment, the detector subsystems that will be upgraded to cope with the new operational conditions imposed by the High-Luminosity LHC are required to develop a Detector Control System (DCS) tailored to their specific needs. A key consideration for this upgrade is the size of WinCC OA projects in terms of various parameters. Understanding how large a WinCC OA project can be, without compromising performance, is critical for ensuring the stability and efficiency of the DCS. This work presents a series of studies conducted on WinCC OA 3.19 projects in order to assess the limits based on the servers that are being used within the ATLAS experiment. The findings provide practical insights into the factors that influence system scalability, such as the number of datapoint elements and the distribution across projects. These results aim to support detector groups in planning and optimizing their DCS architectures, helping them decide on the appropriate number and size of WinCC OA projects based on their future operational requirements.
Paper: TUPD039
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD039
About: Received: 05 Sep 2025 — Revised: 12 Sep 2025 — Accepted: 21 Oct 2025 — Issue date: 25 Nov 2025
TUPD041
New L2SI dynamic reaction microscope endstation in TMO: control system design, installation and integration
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To take advantage of the world's most powerful X-ray beam delivered by the LCLS-II project, the former Atomic, Molecular & Optical Science (AMO) instrument at the SLAC Linac Coherent Light Source (LCLS) user facility has been upgraded to the Time-resolved AMO (TMO) instrument by the L2SI project. The new Dynamic Reaction Microscope (DREAM) endstation, also covered by the L2SI project and located at the second interaction point of the TMO, will offer unique capabilities to support cutting-edge research in the fundamental science of matter and energy. This talk provides an in-depth overview of the control systems for the DREAM endstation, detailing its architecture, design methodology, implementation, and seamless integration with the broader LCLS control infrastructure. It will also address the key challenges, including integrating SmarACT motion control systems with the X-ray Machine Protection System (MPS) across different platforms, developing a robust and flexible equipment protection system, and implementing automated vacuum controls to meet stringent reliability and operational requirements.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG014
About: Received: 12 Sep 2025 — Revised: 30 Sep 2025 — Accepted: 04 Nov 2025 — Issue date: 25 Nov 2025
TUPD042
EPICS 7 upgrade for LCLS-II undulator motion control system
616
Undulators are essential components of the new LCLS-II X-ray Free-Electron Laser (XFEL) facility, providing highly bright and coherent X-ray light for researchers. The LCLS-II includes two undulator lines: the hard X-ray (HXR) line and the soft X-ray (SXR) line, each with distinct architectures. The HXR undulator motion control system, based on RTEMS running on VME and Animatics SmartMotors, leverages existing LCLS hardware for maximum efficiency. In contrast, the SXR undulator system is newly designed with an Aerotech motion controller, both the HXR and SXR systems are built on EPICS v3 Input Output Controllers (IOCs). To meet the requirements of a significant cybersecurity upgrade of the EPICS controls framework at SLAC, we have upgraded all EPICS IOCs from EPICS v3 to EPICS 7. This article details the software architecture and upgrade process for the motion control systems of both the HXR and SXR undulators lines.
Paper: TUPD042
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD042
About: Received: 05 Sep 2025 — Revised: 20 Oct 2025 — Accepted: 21 Oct 2025 — Issue date: 25 Nov 2025
TUPD044
Embracing the accelerator computing revolution at SLAC
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We face a number of challenges in planning future controls and computing for large accelerator facilities. This paper concentrates on how radical changes in use of machine-learning, beam modelling, and big data for online tuning and accelerator physics, are changing the architectures of controls, cyber-security, and laboratory enterprise high performance computing at SLAC. We look briefly at those challenges and then concentrate on activities under way at SLAC to plan and implement a roadmap to meet them.
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG012
About: Received: 22 Oct 2025 — Revised: 07 Nov 2025 — Accepted: 07 Nov 2025 — Issue date: 25 Nov 2025
TUPD047
Update on migration to EPICS at the ISIS accelerators
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The ISIS Neutron and Muon Facility accelerators are migrating to an EPICS control system. The tools developed to run two control systems in parallel and to automate the migration of hardware and user interfaces to EPICS have been previously presented. We now detail our emerging EPICS setup. Hardware interfaces are implemented as a mixture of conventional EPICS IOCs, in-house developed equivalents in Python, and bridged through our old control system. Our user interfaces are primarily the Phoebus stack but web interfaces in Python are being explored, particularly to support machine learning purposes such as automated optimisation and anomaly detection. We present issues which may arise at any site in transition, such as handling continuity of data archiving
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUMG009
About: Received: 09 Sep 2025 — Revised: 25 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
The control system of sub-cooled liquid nitrogen cooling system for C11 CPMU at SSRF
Cryogenic Permanent Magnet Undulator (CPMU) is an important kind of insert device at the synchrotron radiation facilities. The magnets of CPMU have a better magnetic performance than a conventional In-vacuum Undulator. The work temperature of CPMU magnets in C11 CPMU is below 80K. The cryogenic operation of CPMU requires a sub-cooled liquid nitrogen cooling system. The operational stability of cooling system is the key factor for device operation throughout one continuous operation period. The control system design for the sub-cooled liquid nitrogen cooling system will be discussed including control system architecture, hardware and software design, control methods. The control loop parameters and performance will be introduced. The system was put into operation in August 2024 and maintains a steady state till January 2025 which has a steady control effect on controlled temperature and pressure.
TUPD050
Status of the control system for the DELTA synchrotron light source
624
The 1.5 GeV electron storage ring DELTA, operated by the University of Dortmund in Germany, celebrated its 30th anniversary last fall. Over the past three decades, the control system has undergone many different IT infrastructure development cycles. It was commissioned between 1994 and 1998, utilizing a series of command-line-based in-house applications that operated on individual, low-performance networked HP workstations and VME-based real-time CPUs, initially without the support of graphical user interfaces (GUIs). These GUIs were gradually implemented later with the introduction of the EPICS software package (1999-2001). Based on a combination of EPICS and a newly installed Linux PC-based client/server architecture, a variety of software tools and hardware extensions were introduced in the following years. Today, the DELTA control system utilizes an open-source virtual environment with a server management platform that integrates kernel-based virtual machines (KVM), software-defined storage and network functions on a single platform. In addition, web-based user interfaces simplify the configuration of the integrated disaster recovery tool and enhance the management of high availability and redundancy within the server cluster. Furthermore, machine learning algorithms have been incorporated into the control and optimization of the storage ring. This report gives a historical review, summarizes the most important developments in recent years and provides an outlook on future projects.
Paper: TUPD050
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-TUPD050
About: Received: 05 Sep 2025 — Revised: 23 Sep 2025 — Accepted: 30 Oct 2025 — Issue date: 25 Nov 2025
THAR001
The integration of custom radiation tolerant electronics in industrial control systems
1311
In the CERN accelerator complex, the conventional magnets are protected against overheating and power converter failures by a PLC-based system, the so-called Warm magnet Interlock Controller (WIC). In 2026, the systems installed in the LHC-SPS transfer lines will reach end-of-life after 20 years of successful operation. Furthermore, Siemens' announcement regarding the phase-out of the S7-300 series necessitates development of a second-generation magnet protection system. Initially, a solution based on the existing purely industrial configuration was considered, involving a simple upgrade of the PLC modules to the new Siemens S7-1500 series. However, due to the susceptibility of this new series to radiation-induced electronic effects, this approach was deemed unfeasible. As a result, a new control system architecture was explored, integrating both an industrial control processor and custom in-house designed radiation-tolerant electronics. To maintain overall system integrity and ensure seamless interfacing with the existing SCADA layer, it was decided to retain the industrial CPU – Siemens S7-1516 PLC – as the process control master. For the slave units, operating in radiation-prone environments, a CERN-developed platform, Distributed I/O Tier, was chosen. The new system is presently being installed in the beam transfer lines. The technical challenges and chosen solutions are described in this paper.
Paper: THAR001
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-THAR001
About: Received: 05 Sep 2025 — Revised: 11 Sep 2025 — Accepted: 21 Oct 2025 — Issue date: 25 Nov 2025
THAR002
Enabling high repetition rate science: Upgrading hard X-ray experimental instruments controls for LCLS-II-HE
1318
The Linac Coherent Light Source (LCLS) at SLAC National Accelerator Laboratory has been undertaking a major project that builds on the foundation of the LCLS-II project. The LCLS-II High Energy (LCLS-II-HE) upgrade is designed to push the capabilities of LCLS-II even further by increasing the energy of its superconducting accelerator to 8 GeV (up from ~4 GeV), enabling the production of even shorter and more intense X-ray pulses for cutting-edge scientific experiments. One of the project’s Key Performance Parameters is the delivery of a high-repetition-rate capable Hard X-ray (HXR) experimental instrument that can perform experiments with the LCLS-II-HE beam. Meeting this requirement has driven the need to upgrade the existing HXR experimental control system. This talk will focus on the scope and progress of that upgrade effort, which builds on the LCLS-II controls architecture integrating new hardware and software components. A major part of the upgrade includes the implementation of the Preemptive Machine Protection System (PMPS), which is integrated across all key control subsystems including motion, optics and vacuum to ensure safe beam delivery. The upgraded system is also designed to support dual-mode operation and beamline multiplexing to meet evolving experimental demands. In addition, as the project approaches installation and transitions into its final phase, the challenges encountered and mitigation implemented to ensure successful delivery will be presented.
Paper: THAR002
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-THAR002
About: Received: 12 Sep 2025 — Revised: 29 Sep 2025 — Accepted: 27 Oct 2025 — Issue date: 25 Nov 2025
THAR003
Upgrade of the LHC vacuum control system towards the High Luminosity LHC era
1323
The HL-LHC project has initiated a comprehensive upgrade of the LHC vacuum control system. Much of the vacuum control hardware, installed at the beginning of the LHC in 2008 or even dating back to the LEP era in the 1990s, was becoming obsolete and required modernization. Additionally, the new HL-LHC operating conditions will induce higher radiation levels; therefore, new radiation-tolerant electronics are required in the arcs and dispersion suppressor areas, as well as radiation-hard equipment in the matching sections. Moreover, during the third long shutdown (2026-2030), the matching sections around the ATLAS and CMS experiments will need to be extensively modified with the insertion of new systems. The vacuum control system will be relocated to new underground galleries, with a significant increase in vacuum control equipment. This upgrade, progressively implemented during each year-end technical stop and long shutdown, spans from 2019 to 2030. Hundreds of controllers are involved, along with significant control software design and refactoring, while keeping the vacuum control system fully operational. This paper provides an overview of the new designs and technological solutions chosen, the radiation hardness assurance applied, the evolution of the vacuum control system architecture, and the main control software upgrades to ensure decades of reliable operation. Furthermore, it presents the current progress, challenges, and outlines future activities planned until 2030.
Paper: THAR003
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-THAR003
About: Received: 05 Sep 2025 — Revised: 22 Sep 2025 — Accepted: 24 Oct 2025 — Issue date: 25 Nov 2025
THAR004
Integration of new cryogenic plants into an existing control system: a scalable and standardized approach
1331
The High-Luminosity upgrade of the Large Hadron Collider (HL-LHC) requires integrating new cryogenic plants while ensuring uninterrupted operation of the existing infrastructure. This paper presents a scalable and standardized approach to upgrading the control system, ensuring flexibility, interoperability, and long-term maintainability. The approach utilizes commercial off-the-shelf (COTS) components, including PLCs and standard programming languages compliant with IEC-1131, to enable modular deployment and minimize development complexity. Additionally, the use of a control framework (UNICOS) streamlines implementation, enhances system coherence, and ensures efficient interaction between new and legacy subsystems. We provide an overview of the control system architecture, highlighting design decisions that enhance scalability and adaptability. Challenges such as maintaining a seamless integration with the operational constraints, reliability assurance, and automation consistency were addressed through structured methodologies. This work serves as a reference for large-scale cryogenic system upgrades, demonstrating how industry standards and COTS solutions facilitate integration while ensuring long-term sustainability.
Paper: THAR004
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-THAR004
About: Received: 04 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 28 Oct 2025 — Issue date: 25 Nov 2025
THAR006
Beamline controls experiences under the APS upgrade project
1337
The upgrade of the Advanced Photon Source included the design and construction of eight brand new beamlines and significant reconstruction of an additional fifteen existing beamlines. With such a significant amount of new support being required, the APS Beamline Controls group took the opportunity to evaluate the hardware we were using and the ways in which we develop and deploy beamline support. This is an overview of the outcomes of those discussions, alongside lessons learned during the actual implementation of such planning. We discuss the hardware chosen, changes in IOC configuration and management, support development challenges, and the setup of data acquisition to fully take advantage of our new beam.
Paper: THAR006
DOI: reference for this paper: 10.18429/JACoW-ICALEPCS2025-THAR006
About: Received: 19 Sep 2025 — Revised: 24 Sep 2025 — Accepted: 04 Nov 2025 — Issue date: 25 Nov 2025