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 - UNPB AU - Yamamoto, Y. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Schaa, Volker R.W. ED - Thomas, Paul W. TI - Achievement of the ILC Milestone by Beam Operation of STF-2 Accelerator at KEK J2 - Proc. of SRF2023, Grand Rapids, MI, USA, 25-30 June 2023 CY - Grand Rapids, MI, USA T2 - International Conference on RF Superconductivity T3 - 21 LA - english AB - The STF-2 accelerator with fourteen 9-cell superconducting cavities at KEK has achieved many milestones for the International Linear Collider (ILC) project since 2019. The main achievements are the beam acceleration at 33 MV/m with nine cavities, the max. beam energy of 384 MeV, the beam power of 6 kW, the beam operation with 5.8 mA per bunch (21.5 ¿A as the beam intensity), the beam emittance of 5 mm mrad, the Low-Level RF control to compensate with heavy beam loading, etc. On the other hand, in these cool-down tests, the performance of cavities has changed including the radiation level. In this talk, these achievements and experiences in the STF-2 accelerator will be presented. PB - JACoW Publishing CP - Geneva, Switzerland ER -