Author: Matsuda, M.
Paper Title Page
MOPCAV015 Development of QWRS for the Future Upgrade of JAEA Tandem Superconducting Booster 299
  • Y. Kondo, H. Kabumoto, M. Matsuda
    JAEA, Ibaraki-ken, Japan
  • T. Dohmae, E. Kako, H. Sakai, K. Umemori
    KEK, Ibaraki, Japan
  • H. Harada, J. Kamiya, K. Moriya, J. Tamura
    JAEA/J-PARC, Tokai-mura, Japan
  The Japan Atomic Energy Agency (JAEA) tandem booster is one of the pioneering superconducting heavy ion linac in the world. It consists of 40 QWRs with an operation frequency of 130 MHz and βopt=0.1, and has potential to accelerate various ions up to Au to 10 MeV/u. The user operation was started in 1994, however, it has been suspended since the Great East Japan Earthquake in 2011. Recently, we started activities to investigate and improve the performance of the QWR cavities towards the restart of the tandem booster. In addition, design work of new lower beta cavities to improve the acceleration efficiency of heavier ions such as Uranium has been launched. Now we are surveying some operation frequencies and types of cavities including multi-gap QWR with use of electro-magnetic simulation of the cavities. In this work, the current status of the R&D program for the JAEA tandem facility is presented.  
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About • Received ※ 20 June 2021 — Accepted ※ 21 August 2021 — Issue date; ※ 01 October 2021  
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