High power CARM for high gradient RF linac

Author

Wang, Q.S. ; McDermott, D.B. ; Lin, A.T. ; Luhmann, N.C. ; Chu, K.R.

fYear

1990

fDate

21-23 May 1990

Firstpage

194

Lastpage

195

Abstract

Summary form only given. A 150-MW, 17-GHz, 1.0-MV, TE₁₁ CARM (cyclotron autoresonance maser) amplifier design suitable for driving the envisioned SLAC (Stanford Linear Accelerator Center) high-gradient RF linac has been developed. A lower-voltage (400-kV) 33-GHz proof-of-principle CARM experiment using a 50-kW magnetron drive has been designed to verify the Doppler upshift of the output frequency, study the region for stability, check the dependence of gain and efficiency on beam current, and attempt both magnetic tapering and gyroresonant wiggler efficiency enhancement schemes. The stable operation regions for the magnetic field for the proposed RF linac CARM and the proof-of-principle CARM have been found. Numerical simulations obtained high efficiencies (~40%) for the proposed CARM as well as the proof-of-principle CARM. The anticipated output power of the proof-of-principle CARM amplifier is 10 MW. driven by a 400-kV, 175-A, α=0.5 beam

Keywords

Doppler effect; digital simulation; gyrotrons; linear accelerators; masers; 1.0 MV; 17 GHz; 17 MW; 175 A; 33 GHz; 400 kV; 45 kV; 50 kW; 500 A; Doppler upshift; Stanford Linear Accelerator Center; TE₁₁; amplifier; cyclotron autoresonance maser; design; gyroresonant wiggler efficiency enhancement; high gradient RF linac; high power CARM; magnetic tapering; magnetron drive; numerical simulations; proof-of-principle;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 1990. IEEE Conference Record - Abstracts., 1990 IEEE International Conference on

Conference_Location

Oakland, CA, USA

Type

conf

DOI

10.1109/PLASMA.1990.110805

Filename

5726075