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URLhttps://doi.org/10.18429/JACoW-IPAC2025-WEPS132
TitleEstimation of the required current on the anode power supply for high power operation in the J-PARC Main Ring
Authors
  • K. Seiya, K. Hasegawa, K. Hara, M. Yoshii, Y. Sugiyama
    High Energy Accelerator Research Organization
  • C. Ohmori
    Japan Proton Accelerator Research Complex
  • F. Tamura, H. Okita, M. Nomura, M. Yamamoto, T. Shimada
    Japan Atomic Energy Agency
  • K. Adachi
    Kyushu University
AbstractThe J-PARC Main Ring (MR) RF system has been undergoing upgrades in preparation for the Hyper-Kamiokande (Hyper-K) neutrino experiment, which is scheduled to begin receiving a 1.3 MW proton beam in 2028. The beam will be accelerated from 3 GeV to 30 GeV within the MR over a reduced cycle time of 0.58 seconds, down from the current 0.65 seconds. Additionally, the number of protons will be increased from $2.3 \times 10^{14}$ to $3.1 \times 10^{14}$to support high power operation. To accommodate these enhancements, additional RF cavities equipped with 600 kW vacuum tubes will be installed, and the anode current will be increased accordingly. Maintaining a constant RF voltage under these conditions requires more anode current to supply the necessary voltage and to compensate for beam loading effects. This paper presents an estimation of the anode current required for high-power beam operation.
Paperdownload: WEPS132.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference16th International Particle Accelerator Conference
Series
LocationTaipei, Taiwan
Date01-06 Jun 2025
PublisherJACoW 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 ISBN978-3-95450-248-6
Online ISSN2673-5490
Received28 May 2025
Revised01 June 2025
Accepted02 June 2025
Issued05 November 2025
DOI10.18429/JACoW-IPAC2025-WEPS132
Pages2443-2446