TY - CONF AU - Zhu, P. AU - He, Y.C. AU - Jin, D.P. AU - Lei, Z. AU - Wang, D.Y. AU - Xie, Z.X. AU - Zhang, Y.L. ED - Schaa, Volker RW ED - Götz, Andy ED - Venter, Johan ED - White, Karen ED - Robichon, Marie ED - Rowland, Vivienne TI - Research and Development of the Fast Orbit Feedback System for HEPS J2 - Proc. of ICALEPCS2023, Cape Town, South Africa, 09-13 October 2023 CY - Cape Town, South Africa T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 19 LA - english AB - The Fast Orbit Feedback (FOFB) system plays a critical role on the beam orbit stability in the storage ring of the High Energy Photon Source (HEPS), which is a fourth-generation diffraction-limited synchrotron radiation source, under construction in Beijing at present. Based on the latest development of FOFB systems, this paper addresses the design and implementation of the hardware and software, including the design of the dual-loop link, the architecture of sub-station hardware, the data transmission and feedback logic, and so on. The total latency is minimized to achieve an overall closed-loop bandwidth of 500Hz. PB - JACoW Publishing CP - Geneva, Switzerland SP - 386 EP - 390 KW - power-supply KW - feedback KW - timing KW - controls KW - interface DA - 2024/02 PY - 2024 SN - 2226-0358 SN - 978-3-95450-238-7 DO - doi:10.18429/JACoW-ICALEPCS2023-TUMBCMO16 UR - https://jacow.org/icalepcs2023/papers/tumbcmo16.pdf ER - TY - CONF AU - Li, G. AU - Deng, X.B. AU - Dong, X.W. AU - Gao, Z.H. AU - Lei, G. AU - Liu, Y. AU - Xie, N. AU - Yin, C.X. AU - Yue, Z.Y. AU - Zhang, D.S. AU - Zhang, Q. AU - Zhao, Z. AU - Zhou, A.Y. ED - Schaa, Volker RW ED - Götz, Andy ED - Venter, Johan ED - White, Karen ED - Robichon, Marie ED - Rowland, Vivienne TI - The Progress and Status of HEPS Beamline Control System J2 - Proc. of ICALEPCS2023, Cape Town, South Africa, 09-13 October 2023 CY - Cape Town, South Africa T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 19 LA - english AB - HEPS will be the first high-energy (6GeV) synchrotron radiation light source in China which is mainly composed of an accelerator, beamlines and end-stations. In phase I, 14+1 beamlines and corresponding experimental stations will be constructed. The beamline control system design, based on EPICS, has been completed and will soon enter the stage of engineering construction and united commissioning. Here, the progress and status of the beamline control system are presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 650 EP - 654 KW - controls KW - EPICS KW - detector KW - experiment KW - synchrotron DA - 2024/02 PY - 2024 SN - 2226-0358 SN - 978-3-95450-238-7 DO - doi:10.18429/JACoW-ICALEPCS2023-TUPDP052 UR - https://jacow.org/icalepcs2023/papers/tupdp052.pdf ER - TY - CONF AU - Zhu, P. AU - Jiao, Y. AU - Li, J.Y. AU - Li, N. AU - Lu, X.H. AU - Meng, C. AU - Peng, Y.M. AU - Xu, G. ED - Schaa, Volker RW ED - Götz, Andy ED - Venter, Johan ED - White, Karen ED - Robichon, Marie ED - Rowland, Vivienne TI - Multi-User Virtual Accelerator at HEPS for High-Level Application Development and Beam Commissioning J2 - Proc. of ICALEPCS2023, Cape Town, South Africa, 09-13 October 2023 CY - Cape Town, South Africa T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 19 LA - english AB - At High Energy Photon Source (HEPS), a multi-user virtual accelerator system has been developed for testing the high-level application (HLA) and simulating the effects of various errors on the results of beam commissioning. The virtual accelerator is based on the Pyapas development framework for HLA and is designed using a client/server (C/S) architecture. It uses Ocelot with custom multipole field models for physical calculations and supports error simulation for various magnet and beam instrumentation and diagnostics devices. Calculation results are sent externally through the EPICS PV channel. The multi-user virtual accelerator system was developed to meet the needs of different users within the same network segment who need to simultaneously call the virtual accelerator for software debugging and simulation research. Each user can open a unique virtual accelerator without affecting others, and can also start different virtual accelerators for different research content. The number of virtual accelerators opened is not limited. The operation of the entire virtual accelerator system can be easily switched on and off like opening an app, greatly facilitating user use. This article provides a detailed description of the design concept and implementation of the multi-user virtual accelerator system. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1388 EP - 1390 KW - MMI KW - linac KW - framework KW - controls KW - EPICS DA - 2024/02 PY - 2024 SN - 2226-0358 SN - 978-3-95450-238-7 DO - doi:10.18429/JACoW-ICALEPCS2023-THPDP033 UR - https://jacow.org/icalepcs2023/papers/thpdp033.pdf ER - TY - CONF AU - Lu, X.H. AU - Ji, H.F. AU - Jiao, Y. AU - Li, J.Y. AU - Li, N. AU - Meng, C. AU - Peng, Y.M. AU - Xu, G. AU - Zhao, Y.L. AU - Zhu, P. ED - Schaa, Volker RW ED - Götz, Andy ED - Venter, Johan ED - White, Karen ED - Robichon, Marie ED - Rowland, Vivienne TI - The Application of Pyapas in Linac Beam Commissioning at HEPS J2 - Proc. of ICALEPCS2023, Cape Town, South Africa, 09-13 October 2023 CY - Cape Town, South Africa T2 - International Conference on Accelerator and Large Experimental Physics Control Systems T3 - 19 LA - english AB - The beam commissioning of the Linac at High Energy Photon Source (HEPS) started on March 9th this year. High-level applications (HLAs) based on Pyapas were successfully applied to the beam commissioning. To meet the beam commissioning requirements of the Linac, a series of HLAs were developed, including physics-based control application, PR target data analysis application, emittance measurement application, energy and energy spread measurement application, acceleration phase scanning application, BBA and feedback orbit correction application. Before applying these applications to real beam commissioning, they were tested thoroughly on a virtual accelerator to ensure the correctness of the algorithms and the stability of the application operation. Thanks to the repeated testing on the virtual accelerator, the HLAs of the Linac performed well after being put online, helping the beam commissioning operators to quickly achieve the full-line transmission of the beam and optimize the parameters to the expected values in a short time. This paper will provide a detailed introduction to the application of the relevant HLAs in the Linac beam commissioning at HEPS. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1391 EP - 1393 KW - linac KW - MMI KW - controls KW - framework KW - emittance DA - 2024/02 PY - 2024 SN - 2226-0358 SN - 978-3-95450-238-7 DO - doi:10.18429/JACoW-ICALEPCS2023-THPDP034 UR - https://jacow.org/icalepcs2023/papers/thpdp034.pdf ER -