High-gradient Millimeter-wave Accelerator on a Planar Dielectric Substrate/011

Technical Report · Fri Oct 27 00:00:00 EDT 2000

DOI:https://doi.org/10.2172/784863· OSTI ID:784863

Hill, Marc E

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

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BREAKDOWN
DIELECTRIC MATERIALS
ELECTRON BEAMS
WAVELENGTHS
PERFORMANCE
DESIGN