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Title: First electron beam polarization measurements with a Compton polarimeter at Jefferson Laboratory

A Compton polarimeter has been installed in Hall A at Jefferson Laboratory. This letter reports on the first electron beam polarization measurements performed during the HAPPEX experiment at an electron energy of 3.3 GeV and an average current of 40 muA. The heart of this device is a Fabry-Perot cavity which increased the luminosity for Compton scattering in the interaction region so much that a 1.4% statistical accuracy could be obtained within one hour, with a 3.3% total error.
Authors:
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Publication Date:
OSTI Identifier:
792903
Report Number(s):
JLAB-PHY-02-10; DOE/ER/40150-2039; hep-ex/0203012
TRN: US0200858
DOE Contract Number:
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Other Information: No journal information given for this preprint.; PBD: 1 Mar 2002
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org:
USDOE Office of Energy Research (ER) (US)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCURACY; CEBAF ACCELERATOR; COMPTON EFFECT; ELECTRON BEAMS; ELECTRONS; LUMINOSITY; POLARIMETERS; POLARIZATION