Preliminary Results from Integrating Compton Photon Polarimetry in Hall A of Jefferson Lab [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Science, 2011.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 052,018 : digital, PDF file
Additional Creators: Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

A wide range of nucleon and nuclear structure experiments in Jefferson Lab's Hall A require precise, continuous measurements of the polarization of the electron beam. In our Compton polarimeter, electrons are scattered off photons in a Fabry-Perot cavity; by measuring an asymmetry in the integrated signal of the scattered photons detected in a GSO crystal, we can make non-invasive, continuous measurements of the beam polarization. Our goal is to achieve 1% statistical error within two hours of running. We discuss the design and commissioning of an upgrade to this apparatus, and report preliminary results for experiments conducted at beam energies from 3.5 to 5.9 GeV and photon rates from 5 to 100 kHz.

Report Numbers

E 1.99:jlab-phy-10-1245
E 1.99: doe/or/23177-2010
E 1.99: arxiv:1106.4851
arxiv:1106.4851
doe/or/23177-2010
jlab-phy-10-1245

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Note

Published through SciTech Connect.
09/01/2011.
"jlab-phy-10-1245"
" doe/or/23177-2010"
" arxiv:1106.4851"
J. Phys.: Conf. Ser 312 5
INPC 2010, July 4-9 2010, Vancouver, Canada.
D. Parno, M. Friend, F. Benmokhtar, G. F.

Funding Information

AC05-06OR23177

View MARC record | catkey: 14668212