FRP063
ポスターセッション③ 8月8日 61A 10:00-12:00
レーザーとRFの同期およびKEK ATFにおける電子ビームの安定性への影響
Laser-to-RF synchronization and its effect on the electron beam stability at the KEK ATF
○Konstantin Popov, Aryshev Alexander, 照沼 信浩（高エネルギー加速器研究機構 総研大）
○Konstantin Popov, Alexander Aryshev, Nobuhiro Terunuma（KEK, Japan）
The Low-Level RF (LLRF) system at the KEK Accelerator Test Facility (ATF) is based on a signal generator architecture. Synchronization of the RF-Gun laser system to the accelerating field is achieved via piezoelectric (piezo) feedback. However, reference line jitter and/or drift, as well as piezo control instability, can significantly degrade Laser-to-RF synchronization.
The synchronization stability of the RF-Gun laser pulse arrival and its impact on electron beam parameters immediately downstream of the gun and through the ATF beam transport section were investigated. Simulations incorporating synchronization jitter were performed using ASTRA and Ocelot, and results are benchmarked against experimental data.
This work is supported by the MEXT program Development of Key Element Technologies to Improve the Performance of Future Accelerators (Grant Number JPMXP1423812204).