Research and Development for Ultra-High Gradient Accelerator Structures
Research on the basic physics of high-gradient, high frequency accelerator structures and the associated RF-microwave technology are essential for the future of discovery science, medicine and biology, energy and environment, and national security. We will review the state-of-the-art for the development of high gradient linear accelerators. We will present the research activities aimed at exploring the basic physics phenomenon of RF breakdown. We present the experimental results of a true systematic study in which the surface processing, geometry, and materials of the structures have been varied, one parameter at a time. The breakdown rate or alternatively, the probability of breakdown-pulse-meter has been recorded for different operating parameters. These statistical data reveal a strong dependence of breakdown probability on surface magnetic field, or alternatively on surface pulsed heating. This is in contrast to the classical view of electric field dependence.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1043217
- Report Number(s):
- SLAC-REPRINT-2012-092; TRN: US1203037
- Journal Information:
- AIP Conf.Proc.1299:29-37,2010, Conference: Prepared for 14th Advanced Accelerator Concepts Workshop, Annapolis, Maryland, 13-19 Jun 2010
- Country of Publication:
- United States
- Language:
- English
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