Dynamically polarized target for the g2p and GEpexperiments at Jefferson Lab

J. Pierce; J. Maxwell; C. Keith

doi:10.1134/S1063779614010808

Dynamically polarized target for the g₂^p and G_E^pexperiments at Jefferson Lab

J. Pierce, J. Maxwell, C. Keith

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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 ⁴He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH₃ 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.

Original language	English
Pages (from-to)	303-304
Number of pages	2
Journal	Physics of Particles and Nuclei
Volume	45
Issue number	1
DOIs	https://doi.org/10.1134/S1063779614010808
State	Published - Jan 2014
Externally published	Yes

Funding

Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177 . The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes.

Access to Document

10.1134/S1063779614010808

Cite this

@article{2cdbf1baa8e3475f9d1c02775a53547e,

title = "Dynamically polarized target for the g2p and GEpexperiments at Jefferson Lab",

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 4He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH3 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.",

author = "J. Pierce and J. Maxwell and C. Keith",

year = "2014",

month = jan,

doi = "10.1134/S1063779614010808",

language = "English",

volume = "45",

pages = "303--304",

journal = "Physics of Particles and Nuclei",

issn = "1063-7796",

publisher = "Springer",

number = "1",

}

TY - JOUR

T1 - Dynamically polarized target for the g2p and GEpexperiments at Jefferson Lab

AU - Pierce, J.

AU - Maxwell, J.

AU - Keith, C.

PY - 2014/1

Y1 - 2014/1

N2 - 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 4He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH3 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.

AB - 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 4He evaporation refrigerator, and a re-purposed, superconducting split-coil magnet. It has been used to polarize protons in irradiated NH3 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.

UR - http://www.scopus.com/inward/record.url?scp=84891709828&partnerID=8YFLogxK

U2 - 10.1134/S1063779614010808

DO - 10.1134/S1063779614010808

M3 - Article

AN - SCOPUS:84891709828

SN - 1063-7796

VL - 45

SP - 303

EP - 304

JO - Physics of Particles and Nuclei

JF - Physics of Particles and Nuclei

IS - 1

ER -

Dynamically polarized target for the g₂^p and G_E^pexperiments at Jefferson Lab

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this