ALKALI PHOTOCATHODE DEVELOPMENT FOR SUPERCONDUCTING RF GUNS

Authors
MICHELATO P GALLINA P PAGANI C
Citation
P. Michelato et al., ALKALI PHOTOCATHODE DEVELOPMENT FOR SUPERCONDUCTING RF GUNS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 340(1), 1994, pp. 176-181
Citations number
15
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
340
Issue
1
Year of publication
1994
Pages
176 - 181
Database
ISI
SICI code
0168-9002(1994)340:1<176:APDFSR>2.0.ZU;2-J
Abstract
R & D activity on high quantum efficiency alkali antimonide photocatho des is in progress at Milano, in the context of the ARES program. Insi de a preliminary preparation chamber, Cs3Sb layers with quantum effici ency up to 9% (at lambda = 543.5 nm) and a lifetime of several days ha ve recently been produced on copper, stainless steel and niobium, usin g a reproducible deposition procedure adapted to the different substra tum material. An advanced preparation chamber, with an improved vacuum system and the possibility to transfer cathodes to surface analysis e quipment, under UHV conditions, is also discussed.