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

Journal Article ·
OSTI ID:792903

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.

Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
792903
Report Number(s):
JLAB-PHY-02-10; DOE/ER/40150-2039; hep-ex/0203012
Country of Publication:
United States
Language:
English

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