WEP063
ポスターセッション① 8月6日 61A 12:40-14:40
ILC電力分配システム用可変電力分配器のプロトタイプの開発
Development of a prototype variable power divider for the ILC power distribution system
○Joshi Prakash1, MATSUMOTO Toshihiro1, 2, MICHIZONO Shinichiro1, 2, OMET Mathieu1, 2（1SOKENDAI, 2KEK）
○Prakash JOSHI1, Toshihiro MATSUMOTO1, 2, Shinichiro MICHIZONO1, 2, Mathieu OMET1, 2（1SOKENDAI, 2KEK）
The R&D of the radio frequency (RF) power distribution system (PDS) for the International Linear Collider is ongoing. To maximize the beam energy, PDS uses power dividers and phase shifters, which allow driving all cavities below their respective operational limits over the whole flattop. This is necessary to drive 39 superconducting RF (SRF) cavities by a 10 MW multibeam klystron. Following the design of the variable power divider (VPD) developed at SLAC, we intend to combine power dividing and phase-shifting capabilities in a single device. The prototype VPD comprises two folded magic tees (FMTs), four H corners, and two variable phase shifters (VPS). In prototype VPD coupling ratio between the two ports can be interchanged with the same output phase by moving VPS in the opposite direction. This is verified by simulation and low-power test. Preparations for its high-power testing are currently underway.