Status of Jefferson Lab's Load Locked Polarized Electron Beam
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.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 806812
- Report Number(s):
- JLAB-ACC-02-16; DOE/ER/40150-2408; TRN: US200304%%262
- Resource Relation:
- Conference: 15th International Spin Physics Symposium (SPIN 2002), Long Island, NY (US), 09/09/2002--09/14/2002; Other Information: PBD: 1 Sep 2002
- Country of Publication:
- United States
- Language:
- English
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