Performance of the Brookhaven photocathode rf gun

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:6066800

Batchelor, K; Ben-Zvi, I; Fernow, R C; Fischer, J; Fisher, A S; Gallardo, J; Ingold, G; Kirk, H G; Leung, K P; Malone, R; Pogorelsky, I; Srinivasan-Rao, T; Rogers, J; Tsang, T; Sheehan, J; Ulc, S; Woodle, M; Xie, J; Zhang, R S ^[1]; Lin, L Y ^[2] ; McDonald, K T; Russell, D P ^[3]

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1. Brookhaven National Lab., Upton, NY (United States)
2. Columbia Univ., New York, NY (United States). Dept. of Applied Physics
3. Pr

The Brookhaven Accelerator Test Facility (ATF) uses a photocathode rf gun to provide a high-brightness electron beam intended for FEL and laser-acceleration experiments. The rf gun consists of 1{1/2} cells driven at 2856 MHz in {pi}-mode with a maximum cathode field of 100 MV/m. To achieve long lifetimes, the photocathode development concentrates on robust metals such as copper, yttrium and samarium. We illuminate these cathodes with a 10-ps, frequency-quadrupled Nd:YAG laser. We describe the initial operation of the gun, including measurements of transverse and longitudinal emittance, quantum efficiencies, and peak current. The results are compared to models.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6066800
• Report Number(s): BNL-46679; CONF-9108118--38; ON: DE92005008
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430302* -- Particle Accelerators-- Injection & Extraction Systems
BEAM EMITTANCE
BEAMS
CATHODES
ELECTRODES
ELECTRON BEAMS
ELECTRON GUNS
FREE ELECTRON LASERS
LASERS
LEPTON BEAMS
NEODYMIUM LASERS
PARTICLE BEAMS
PERFORMANCE
PHOTOCATHODES
RF SYSTEMS
SOLID STATE LASERS