skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High Intensity Polarized Electron Sources

Abstract

During the 1990s, at numerous facilities world wide, extensive R&D devoted to constructing reliable GaAs photoguns helped ensure successful accelerator-based nuclear and high-energy physics programs using spin polarized electron beams. Today, polarized electron source technology is considered mature, with most GaAs photoguns meeting accelerator and experiment beam specifications in a relatively trouble-free manner. Proposals for new collider facilities however, require electron beams with parameters beyond today's state-of-the-art and serve to renew interest in conducting polarized electron source R&D. And at CEBAF/Jefferson Lab, there is an immediate pressing need to prepare for new experiments that require considerably more beam current than before. One experiment in particular?Q-weak, a parity violation experiment that will look for physics beyond the Standard Model?requires 180 uA average current at polarization >80% for a duration of one year, with run-averaged helicity correlate

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson Lab National Accelerator Facility
Sponsoring Org.:
USDOE
OSTI Identifier:
955852
Report Number(s):
JLAB-ACC-07-679; 7728441; DOE/OR/23177-0354
Journal ID: ISSN 0094-243X; TRN: US1004781
DOE Contract Number:  
AC05-060R23177
Resource Type:
Conference
Resource Relation:
Journal Volume: 980; Conference: Invited Talk compiled for PSTP 2007
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM CURRENTS; ELECTRON BEAMS; ELECTRON SOURCES; HELICITY; PARITY; PHYSICS; POLARIZATION; PRESSING; SPECIFICATIONS; SPIN; STANDARD MODEL

Citation Formats

Poelker, Benard, Adderley, Philip, Brittian, Joshua, Clark, J, Grames, Joseph, Hansknecht, John, McCarter, James, Stutzman, Marcy, Suleiman, Riad, and Surles-law, Kenneth. High Intensity Polarized Electron Sources. United States: N. p., 2008. Web. doi:10.1063/1.2888121.
Poelker, Benard, Adderley, Philip, Brittian, Joshua, Clark, J, Grames, Joseph, Hansknecht, John, McCarter, James, Stutzman, Marcy, Suleiman, Riad, & Surles-law, Kenneth. High Intensity Polarized Electron Sources. United States. doi:10.1063/1.2888121.
Poelker, Benard, Adderley, Philip, Brittian, Joshua, Clark, J, Grames, Joseph, Hansknecht, John, McCarter, James, Stutzman, Marcy, Suleiman, Riad, and Surles-law, Kenneth. Fri . "High Intensity Polarized Electron Sources". United States. doi:10.1063/1.2888121. https://www.osti.gov/servlets/purl/955852.
@article{osti_955852,
title = {High Intensity Polarized Electron Sources},
author = {Poelker, Benard and Adderley, Philip and Brittian, Joshua and Clark, J and Grames, Joseph and Hansknecht, John and McCarter, James and Stutzman, Marcy and Suleiman, Riad and Surles-law, Kenneth},
abstractNote = {During the 1990s, at numerous facilities world wide, extensive R&D devoted to constructing reliable GaAs photoguns helped ensure successful accelerator-based nuclear and high-energy physics programs using spin polarized electron beams. Today, polarized electron source technology is considered mature, with most GaAs photoguns meeting accelerator and experiment beam specifications in a relatively trouble-free manner. Proposals for new collider facilities however, require electron beams with parameters beyond today's state-of-the-art and serve to renew interest in conducting polarized electron source R&D. And at CEBAF/Jefferson Lab, there is an immediate pressing need to prepare for new experiments that require considerably more beam current than before. One experiment in particular?Q-weak, a parity violation experiment that will look for physics beyond the Standard Model?requires 180 uA average current at polarization >80% for a duration of one year, with run-averaged helicity correlate},
doi = {10.1063/1.2888121},
journal = {},
issn = {0094-243X},
number = ,
volume = 980,
place = {United States},
year = {2008},
month = {2}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: