Author: Ko, H.S.
Paper Title Page
WE1AA05 The Muon Linac Project at J-PARC 636
  • Y. Kondo, Y. Fuwa, R. Kitamura, K. Moriya, T. Takayanagi
    JAEA/J-PARC, Tokai-mura, Japan
  • S. Bae, H. Choi, S. Choi, B. Kim, H.S. Ko
    SNU, Seoul, Republic of Korea
  • E. Cicek, H. Ego, Y. Fukao, K. Futatsukawa, N. Kawamura, T. Mibe, Y. Miyake, S. Mizobata, M. Otani, N. Saito, K. Shimomura, T. Yamazaki, M. Yoshida
    KEK, Ibaraki, Japan
  • K. Hasegawa
    QST Rokkasho, Aomori, Japan
  • N. Hayashizaki
    Research Laboratory for Nuclear Research, Tokyo Institute of Technology, Tokyo, Japan
  • T. Iijima, Y. Sue, K. Sumi
    Nagoya University, Graduate School of Science, Chikusa-ku, Nagoya, Japan
  • H. Iinuma, Y. Nakazawa
    Ibaraki University, Ibaraki, Japan
  • K. Inami, K. Suzuki, M. Yotsuzuka
    Nagoya University, Nagoya, Japan
  • K. Ishida
    RIKEN Nishina Center, Wako, Japan
  • Y. Iwashita
    Kyoto ICR, Uji, Kyoto, Japan
  • T. Morishita
    JAEA/LINAC, Ibaraki-ken, Japan
  • G.P. Razuvaev
    Budker INP & NSU, Novosibirsk, Russia
  • Y. Takeuchi, J. Tojo
    Kyushu University, Fukuoka, Japan
  • E. Won
    Korea University, Seoul, Republic of Korea
  • H.Y. Yasuda
    University of Tokyo, Tokyo, Japan
  The muon linac project for the precise measurement of the muon anomalous magnetic and electric dipole moments, which is currently one of the hottest issues of the elementary particle physics, is in progress at J-PARC. The muons from the J-PARC muon facility are once cooled to room temperature, then accelerated up to 212 MeV with a normalized emittance of 1.5 pi mm mrad and a momentum spread of 0.1%. Four types of accelerating structures are adopted to obtain the efficient acceleration with a wide beta range from 0.01 to 0.94. The project is moving into the construction phase. They already demonstrated the re-acceleration scheme of the decelerated muons using a 324-MHz RFQ in 2017. The high-power test of the 324-MHz Interdigital H-mode (IH) DTL using a prototype cavity will be performed in 2021. The fabrication of the first module of 14 modules of the 1296-MHz Disk and Washer (DAW) CCL will be done to confirm the production process. Moreover, the final design of the travelling wave accelerating structure for the high beta region is also proceeding. In this presentation, the recent progress toward the realization of the world first muon linac will be presented.  
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About • Received ※ 14 August 2022 — Revised ※ 21 August 2022 — Accepted ※ 01 September 2022 — Issue date ※ 16 September 2022
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