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URLhttps://doi.org/10.18429/JACoW-ICALEPCS2025-THPD029
TitleUpdate of Linac and RCS MPS for BLM
Authors
  • H. Takahashi, M. Yoshimoto
    Japan Atomic Energy Agency
  • T. Suzuki
    Mitsubishi Electric System & Service Co., Ltd
  • T. Miyao
    High Energy Accelerator Research Organization
  • Y. Suzuki
    Total Support Systems Co., Ltd.
AbstractThe Machine Protection System (MPS) has been configured to inhibit the beam immediately in irregular events and to minimize the damage caused by beam loss because J-PARC Linac and 3 GeV Rapid Cycling Synchrotron (RCS) are high-intensity accelerators. The MPS for J-PARC Linac and RCS mainly consists of standard MPS module and MPS module for beam loss monitor (BLM). However, the existing MPS modules have been used since the beginning of J-PARC operation, and there is a concern that the modules may cause malfunction due to aging. Therefore, we have developed new MPS modules and are now replacing a part of Linac and RCS MPS using new standard MPS modules. On the other hand, the development of the MPS module for BLM has not been proceeding because of reasons both the existing MPS module for BLM has a comparator function and the beam loss detection methods for Linac and RCS are different. Therefore, it was decided to separate the comparator function from the MPS module, and to develop each hardware corresponding to the beam loss detection methods for Linac and RCS, and to implement these functions. By combining the new standard MPS module and this hardware, a new MPS for BLM will be configured. This paper describes the current status and plan to update Linac and RCS MPS for BLM.
Paperdownload: THPD029.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference20th Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'25)
Series
LocationChicago, IL, USA
Date20-26 Sep 2025
PublisherJACoW Publishing, Geneva, Switzerland
Editorial BoardKent Wootton (ANL), Jeffery Biss (FNAL), Gustavo Bruno (ANL), Jeff Kirchman (ANL), Kelly Jaje (ANL), Denise Skiadopoulos (ANL), SuYin Grass Wang (ANL)
Online ISBN978-3-95450-255-4
Online ISSN2226-0358
Received06 September 2025
Revised24 September 2025
Accepted29 October 2025
Issued25 November 2025
DOI10.18429/JACoW-ICALEPCS2025-THPD029
Pages1646-1649