High-gradient Millimeter-wave Accelerator on a Planar Dielectric Substrate/011
We report the first high gradient studies of a millimeter-wave accelerator, employing for the first time a planar dielectric accelerator, powered by means of a 0.5-A, 300-MeV, 11.424-GHz drive electron beam, synchronous at the 8-th harmonic, 91.392 GHz. Embedded in a ring-resonator circuit within the electron beamline vacuum, this structure was operated at 20 MeV/m, with a circulating power of 200 kW, for 2 x 10{sup 5} pulses, with no sign of breakdown, dielectric charging or other deleterious high-gradient phenomena. We also present the first measurement of the quadrupolar content of an accelerating mode.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 784863
- Report Number(s):
- SLAC-PUB-8680; TRN: US0108646
- Resource Relation:
- Other Information: PBD: 27 Oct 2000
- Country of Publication:
- United States
- Language:
- English
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