Tuning And Field Sensitivity Of Pi-Mode Standing Wave Linacs For The NLC

Abstract

In order to mitigate the effects of electrical breakdown (which have been found to occur in SLAC X-band traveling wave structures) standing wave structures are being considered for the NLC linac. At SLAC, structures consisting of 15 cells operating in the p accelerating mode are being tested for their electrical breakdown characteristics. In this paper the tuning requirement on the cavities is elucidated by utilizing a circuit model of the structure. The sensitivity of the field to both random and systematic errors is also discussed.

Paper presented at the 2002 8th European Particle Accelerator Conference (EPAC 2002) Paris, France, June 3rd -June 7th, 2002