Pulsed Cs beam development for the BNL polarized H/sup -/ source
Conference
·
OSTI ID:6176338
A pulsed Cs/sup +/ beam has been developed for use on a polarized H/sup -/ source. Cesium ion production is by surface ionization using a porous tungsten ionizer. While satisfactory current pulses (5 to 10 mA greater than or equal to 0.5 ms) can be obtained, the pulse shapes are a sensitive function of the ionizer temperature and Cs surface coverage. The beam optical requirements are stringent, and the optics have been studied experimentally for both Cs/sup +/ and Cs/sup 0/ beams. Computer calculations are in good agreement with the observed results. The present source has delivered 2.6 mA of Cs/sup +/ through the interaction region of the polarized ion source, and as much as 2.0 particle mA of Cs/sup 0/. A new source is being built which is designed to give 15 mA through the interaction region.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6176338
- Report Number(s):
- BNL-32815; CONF-830348-1; ON: DE83010880
- Country of Publication:
- United States
- Language:
- English
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