dorsal/arxiv
View SchemaA measurement of the absolute neutron beam polarization produced by an optically-pumped 3He spin filter
| Authors | D. R. Rich, J. D. Bowman, B. E. Crawford, P. P. J. Delheij, M. A. Espy, T. Haseyama, G. Jones, C. D. Keith, J. Knudson, M. B. Leuschner, A. Masaike, Y. Masuda, Y. Matsuda, S. I. Penttila, V. R. Pomeroy, D. A. Smith, W. M. Snow, S. L. Stephenson, A. K. Thompson, V. Yuan |
|---|---|
| Categories | |
| ArXiv ID | physics/9908050 |
| URL | https://arxiv.org/abs/physics/9908050 |
Abstract
The capability of performing accurate measurements of neutron beam polarization opens a number of exciting opportunities in fundamental neutron physics and in neutron scattering. At the LANSCE pulsed neutron source we have measured the neutron beam polarization with absolute accuracy of 0.3% in the neutron energy range from 40 meV to 10 eV using an optically-pumped polarized 3He spin filter and a relative transmission measurement technique. 3He was polarized using the Rb spin-exchange method. We describe the measurement technique, present our results, and discuss some of the systematic effects associated with the method.
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"date_created": "2026-03-02T18:01:24.169000Z",
"date_modified": "2026-03-02T18:01:24.169000Z",
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"abstract": "The capability of performing accurate measurements of neutron beam\npolarization opens a number of exciting opportunities in fundamental neutron\nphysics and in neutron scattering. At the LANSCE pulsed neutron source we have\nmeasured the neutron beam polarization with absolute accuracy of 0.3% in the\nneutron energy range from 40 meV to 10 eV using an optically-pumped polarized\n3He spin filter and a relative transmission measurement technique. 3He was\npolarized using the Rb spin-exchange method. We describe the measurement\ntechnique, present our results, and discuss some of the systematic effects\nassociated with the method.",
"arxiv_id": "physics/9908050",
"authors": [
"D. R. Rich",
"J. D. Bowman",
"B. E. Crawford",
"P. P. J. Delheij",
"M. A. Espy",
"T. Haseyama",
"G. Jones",
"C. D. Keith",
"J. Knudson",
"M. B. Leuschner",
"A. Masaike",
"Y. Masuda",
"Y. Matsuda",
"S. I. Penttila",
"V. R. Pomeroy",
"D. A. Smith",
"W. M. Snow",
"S. L. Stephenson",
"A. K. Thompson",
"V. Yuan"
],
"categories": [
"physics.ins-det"
],
"title": "A measurement of the absolute neutron beam polarization produced by an optically-pumped 3He spin filter",
"url": "https://arxiv.org/abs/physics/9908050"
},
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