MULTI-ALKALI PHOTOCATHODE DEVELOPMENT AT BROOKHAVEN NATIONAL LAB FOR APPLICATION IN SUPERCONDUCTING PHOTOINJECTORS. KICKERS.

Conference · Mon May 16 00:00:00 EDT 2005

OSTI ID:15016275

BURRILL, A; BEN-ZVI, I; RAO, T; PATE, D; SEGALOV, Z

The development of a suitable photocathode for use in a high average current photoinjector at temperatures ranging from 273 K down to 2 K is a subject of considerable interest, and active research. The choice of photocathode material is often a trade-off made based on the quantum efficiency of the cathode material, the tolerance to adverse vacuum conditions, and the laser wavelength needed to produce photoelectrons. In this paper an overview of the BNL work to date on CsK{sub 2}Sb photocathodes on a variety of substrates, irradiated at multiple wavelengths, and at temperatures down to 170 K will be discussed. The application of this photocathode material into a SRF photoinjector will also be discussed.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (US)
• Sponsoring Organization: DOE/SC (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 15016275
• Report Number(s): BNL-73427-2005-CP; R&D Project: 18054; ISBN KB-02-02-01-1; TRN: US0502157
• Resource Relation: Conference: PAC 05 PARTICLE ACCELERATOR CONFERENCE, KNOXVILLE, TN (US), 05/16/2005--05/20/2005; Other Information: PBD: 16 May 2005
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
BNL
CATHODES
LASERS
PHOTOCATHODES
QUANTUM EFFICIENCY
SUBSTRATES
TOLERANCE
WAVELENGTHS