Status of Jefferson Lab’s Load Locked Polarized Electron Gun
作者:
M. L. Stutzman,
P. Adderley,
M. Baylac,
J. Clark,
A. Day,
J. Grames,
J. Hansknecht,
M. Poelker,
期刊:
AIP Conference Proceedings
(AIP Available online 1903)
卷期:
Volume 675,
issue 1
页码: 1078-1082
ISSN:0094-243X
年代: 1903
DOI:10.1063/1.1607300
出版商: AIP
数据来源: AIP
摘要:
A new 100 kV load locked polarized electron gun has been built at Jefferson Lab. The gun is installed in a test stand on a beam line that resembles the first few meters of the CEBAF nuclear physics photoinjector. With this gun, a GaAs photocathode can be loaded from atmosphere, hydrogen cleaned, activated and taken to high voltage in less than 8 hours. The gun is a three chamber design, with all of the moving parts remaining at ground potential during gun operation. Studies of gun performance, photocathode life times, transverse emittance at high bunch charge, helicity correlated effects and beam polarizations from new photocathode samples will all be greatly facilitated by the use of this load locked gun. © 2003 American Institute of Physics
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