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

Berenc, T.

Argonne National Laboratory

关键词: Advanced Photon Source;    Crabs;    Cavities;    Storage Rings;    43 Particle Accelerators;   

DOI  :  10.2172/1037971
RP-ID  :  ANL/APS/LS-324
RP-ID  :  DE-AC02-06CH11357
RP-ID  :  1037971

美国|其它

来源: UNT Digital Library

【 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.