An equivalent circuit model and power calculations for the APS SPX crab cavities.

Berenc, T. (Accelerator Systems Division (APS))

关键词: ADVANCED PHOTON SOURCE;    CAVITIES;    CRABS;    EQUIVALENT CIRCUITS;    STORAGE RINGS;   

DOI  :  10.2172/1037971
RP-ID  :  ANL/APS/LS-324
PID  :  OSTI ID: 1037971
Others  :  TRN: US1201779

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

An equivalent parallel resistor-inductor-capacitor (RLC) circuit with beam loading for a polarized TM110 dipole-mode cavity is developed and minimum radio-frequency (rf) generator requirements are calculated for the Advanced Photon Source (APS) short-pulse x-ray (SPX) superconducting rf (SRF) crab cavities. A beam-loaded circuit model for polarized TM110 mode crab cavities was derived. The single-cavity minimum steady-state required generator power has been determined for the APS SPX crab cavities for a storage ring current of 200mA DC current as a function of external Q for various vertical offsets including beam tilt and uncontrollable detuning. Calculations to aid machine protection considerations were given.