THPS054

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URL	https://doi.org/10.18429/JACoW-IPAC2025-THPS054
Title	State-of-the-art cryogenics process control for the operation of the ESS superconducting linac
Authors	N. Elias, A. Fontoura, E. Asensi, H. Przybilski, J. Zhang, M. Skiba, P. Nilsson, P. Arnold, W. Binczyk European Spallation Source P. Halczynski, W. Gaj Institute of Nuclear Physics, Polish Academy of Sciences
Abstract	This paper presents the strategy for the simultaneous cryogenic operation of the ESS superconducting linac, consisting of 43 cryomodules. It details the process logic required for different operational phases and introduces a novel control system designed to manage these complexities. Key features of the system are discussed, including multiple independent automatic control sequences, a master controller for system synchronization, failure response protocols, and operator interface design. Fully deployed in December 2024, the system played a critical role in the successful cooldown of the accelerator. The paper also addresses lessons learned during this deployment and outlines potential improvements for future operations.
Paper	download: THPS054.pdf
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Conference	16th International Particle Accelerator Conference
Series
Location	Taipei, Taiwan
Date	01-06 Jun 2025
Publisher	JACoW Publishing, Geneva, Switzerland
Editorial Board	* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN	978-3-95450-248-6
Online ISSN	2673-5490
Received	28 May 2025
Revised	14 October 2025
Accepted	14 October 2025
Issued	05 November 2025
DOI	10.18429/JACoW-IPAC2025-THPS054
Pages	3086-3089
Copyright	Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.