JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Yamada, K. AU - Dantsuka, T. AU - Fujimaki, M. AU - Hara, H. AU - Ikezawa, E. AU - Imao, H. AU - Kako, E. AU - Kamigaito, O. AU - Komiyama, M. AU - Kumagai, K. AU - Miyamoto, A. AU - Nagatomo, T. AU - Nakai, H. AU - Nishi, T. AU - Okuno, H. AU - Ozeki, K. AU - Sakai, H. AU - Sakamoto, N. AU - Sennyu, K. AU - Suda, K. AU - Uchiyama, A. AU - Umemori, K. AU - Watanabe, T. AU - Watanabe, Y. AU - Yanagisawa, T. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Successful Beam Commissioning of Heavy-Ion Superconducting Linac at RIKEN J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - A new superconducting booster linac, so-called SRILAC, has been constructed at the RIKEN Nishina Center to upgrade the acceleration voltage of the existing linac in order to enable further investigation of new super-heavy elements and the production of useful RIs. The SRILAC consists of 10 TEM quarter-wavelength resonators made from pure niobium sheets which operate at 4.5 K. We succeeded to develop high performance SC-cavities which satisfies the required Q₀ of 1E+9 with a wide margin. Installation of the cryomodule and He refrigerator system was completed by the end of FY2018, and the first cooling test was performed in September 2019. After various tests of the RF system, the beam acceleration was successfully commissioned in January 2020. In June 2020, the beam supply to the experiment was started. In this talk, I will report on the beam commissioning of SRILAC as well as the status of the frequency tuner and the differential pump system. PB - JACoW Publishing CP - Geneva, Switzerland SP - 167 EP - 174 KW - linac KW - vacuum KW - cavity KW - acceleration KW - controls DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-MOOFAV01 UR - https://jacow.org/srf2021/papers/moofav01.pdf ER -