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High Precision Electron Beam Polarization Measurement with Compton Polarimetry at Jefferson Laboratory

Conference ·
DOI:https://doi.org/10.1063/1.1607253· OSTI ID:955412

Since 1999, a Compton polarimeter based on a Fabry-Perot cavity to amplify the laser light is operational in the hall A of the Jefferson Laboratory. In 2000, the beam polarization has been continuously measured during N â Delta and Gep experiment providing a relative total uncertainty of 1.4% in 40 mn at 4.5 GeV. These unprecedented results have been obtained thanks to a scattered electron detector which has allowed to determine the response function of the photon calorimeter.

Research Organization:
Thomas Jefferson Lab National Accelerator Facility
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-84ER40150
OSTI ID:
955412
Report Number(s):
JLAB-PHY-02-203; DOE/ER/40150-4490
Country of Publication:
United States
Language:
English

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