話題
ILCに向けたSTF-2クライオモジュールによる33 MV/mでのビーム加速実証
2021 年 18 巻 3 号 p. 143-150
詳細
2021 年 18 巻 3 号 p. 143-150
In STF at KEK, as the operational demonstration of the SRF accelerator for ILC, the STF-2 cryomodules (CM1+CM2a: one and half size CM with 12 cavities) have achieved 33 MV/m as average accelerating gradient with 7 cavities in Mar/2019. After that, one cavity with the lowest performance installed in CM2a was replaced with one N-infused cavity developed for High-Q/High-G R&D between Japan and US. From Apr/2021, the beam operation started again and those CMs achieved 33 MV/m as average accelerating gradient with 9 cavities including one N-infused cavity again. This is remarkably important milestone for the ILC project. In this report, the detailed results will be presented.
