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Dynamically polarized target for the g[superscript p][subscript 2] and G[superscript p][subscript E] experiments at Jefferson Lab

Author(s)
Pierce, J.; Keith, C.; Maxwell, James D
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Alternative title
Dynamically polarized target for the g2p and GEp experiments at Jefferson Lab
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
Recently, two experiments were concluded in Hall A at Jefferson Lab which utilized a newly assembled, solid, polarized hydrogen target. The primary components of the target are a new, high cooling power [subscript 4]He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH[subscript 3] at a temperature of 1 K and at fields of 2.5 and 5.0 tesla. Maximum polarizations of 55% and 95% were obtained at those fields, respectively. To satisfy the requirements of both experiments, the magnet had to be routinely rotated between angles of 0°, 6°, and 90° with respect to the incident electron beam.
Date issued
2014-01
URI
http://hdl.handle.net/1721.1/104923
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physics of Particles and Nuclei
Publisher
Springer US
Citation
Pierce, J., J. Maxwell, and C. Keith. “Dynamically Polarized Target for the G 2 P and G E P Experiments at Jefferson Lab.” Physics of Particles and Nuclei 45.1 (2014): 303–304.
Version: Author's final manuscript
ISSN
1063-7796
1531-8559

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