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Title: Polarized electron sources

Conference ·
OSTI ID:90755
 [1]
  1. Univ. of Wisconsin, Madison, WI (United States)

The fundamentals of polarized electron sources are described with particular application to the Stanford Linear Accelerator Center. The SLAC polarized electron source is based on the principle of polarized photoemission from Gallium Arsenide. Recent developments using epitaxially grown, strained Gallium Arsenide cathodes have made it possible to obtain electron polarization significantly in excess of the conventional 50% polarization limit. The basic principles for Gallium and Arsenide polarized photoemitters are reviewed, and the extension of the basic technique to strained cathode structures is described. Results from laboratory measurements of strained photocathodes as well as operational results from the SLAC polarized source are presented.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
DOE Contract Number:
AC02-76ER00881
OSTI ID:
90755
Report Number(s):
SLAC-444; CONF-930767-; ON: DE95008628; TRN: 95:018202
Resource Relation:
Conference: 21. annual SLAC Summer Institute on particle physics: spin structure in high-energy processes, Stanford, CA (United States), 26 Jul - 6 Aug 1993; Other Information: PBD: Dec 1994; Related Information: Is Part Of Spin structure in high energy processes: Proceedings; DePorcel, L.; Dunwoodie, C. [eds.]; PB: 593 p.
Country of Publication:
United States
Language:
English