High Precision Electron Beam Polarization Measurement with Compton Polarimetry at Jefferson Laboratory
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 National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 955412
- Report Number(s):
- JLAB-PHY-02-203; DOE/ER/40150-4490; TRN: US1004664
- Resource Relation:
- Journal Volume: 675; Conference: Paper compiled for Spin 2002
- Country of Publication:
- United States
- Language:
- English
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