Design Study of 325MHz RF Power Coupler for Superconducting Cavity

Junyoung Yoon, Jungbae Bahng, Hyuk Jin Cha, Si-Won Jang, Eun-San Kim, Kyung-Ryul Kim, Chong Shik Park, Seong Hee Park, Boland, Mark (Ed.), Tan, Eugene (Ed.), Button, David (Ed.), Dowd, Rohan (Ed.) (+2 others)
We present the design study of the RF input power coupler for 325 MHz superconducting cavities. The power coupler, based on a conventional coaxial transmission line, provides RF powers to the cavity up to 12kW in CW mode. The thermal interceptors are considered as 4.5 K and 40 K or 4.5 K and 77 K corresponding to the usage of liquid Helium only or both liquid Helium and Nitrogen for cryogenic temperature to reduce the thermal load. The transition box (T-box), which is assembled with power
more » ... ed with power coupler, is designed and applied for impedance matching and inner conductor cooling.
doi:10.18429/jacow-ipac2019-weprb056 fatcat:gnhszd2fnbegzf3amqwojivpkm