Performance of a 1.3 GHZ Normal-Conducting 5-Cell Standing-Wave Cavity

Conference · Wed Nov 12 04:00:00 EST 2008 · Conf.Proc.C0809292:957-959,2008

OSTI ID:940970

Wang, Faya; Adolphsen, Chris; Wang, Juwen

A 5-cell, normal-conducting, 1.3 GHz, standing-wave (SW) cavity was built as a prototype capture accelerator for the ILC positron source. Although the ILC uses predominantly superconducting cavities, the capture cavity location in both a high radiation environment and a solenoidal magnetic field requires it to be normal conducting. With the relatively high duty ILC beam pulses (1 msec at 5 Hz) and the high gradient required for efficient positron capture (15 MV/m), achieving adequate cavity cooling to prevent significant detuning is challenging. This paper presents the operational performance of this cavity including the processing history, characteristics of the breakdown events and the acceleration gradient witnessed by a single bunch at different injection times for different rf pulse lengths.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: US DOE Office of Science (DOE SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 940970
• Report Number(s): SLAC-PUB-13459
• Conference Information: Journal Name: Conf.Proc.C0809292:957-959,2008
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
ACCELERATORS
Accelerators
ACCPHY
BREAKDOWN
CAVITIES
LINEAR ACCELERATORS
MAGNETIC FIELDS
PERFORMANCE
POSITRON SOURCES
POSITRONS
PROCESSING
RADIATIONS