A measurement of the absolute neutron beam polarization produced by an optically pumped He-3 neutron spin filter
Type of Work
Article
Date
4-1-2002
Journal Title
Nuclear Instruments & Methods in Physics Research Section A: Accelerators Spectrometers Detectors and Associated Equipment
Journal ISSN
0168-9002
Journal Volume
481
Journal Issue
1-3
First Page
431
Last Page
453
DOI
10.1016/S0168-9002(01)01331-6
Abstract
The capability of performing accurate absolute 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 an absolute accuracy of 0.3% in the neutron energy range from 40 meV to 10 eV using an optically pumped polarized He-3 spin filter and a relative transmission measurement technique. He-3 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. (C) 2002 Elsevier Science B.V. All rights reserved.
Citation Information
Rich, D. R.; Bowman, J. D.; Crawford, B. E.; Delheij, P. P. J.; Espy, M. A.; Haseyama, T.; Jones, Gordon L.; Keith, C. D.; Knudson, J.; Leuschner, M. B.; Masaike, A.; Masuda, Y.; Matsuda, Y.; Penttila, S. I.; Pomeroy, V. R.; Smith, D. A.; Snow, W. M.; Szymanski, J. J.; Stephenson, S. L.; Thompson, A. K.; and Yuan, V., "A measurement of the absolute neutron beam polarization produced by an optically pumped He-3 neutron spin filter" (2002). Hamilton Digital Commons.
https://digitalcommons.hamilton.edu/articles/45
Hamilton Areas of Study
Physics
Notes
Article:
"A measurement of the absolute neutron beam polarization produced by an optically pumped He-3 neutron spin filter," Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment 481, 431-453 (2002). doi: 10.1016/S0168-9002(01)01331-6.
Authors:
D.R. Rich, J.D. Bowman, B.E. Crawford, P.P.J. Delhej, M.A. Espy, T. Haseyama, G. Jones, C.D. Keith, J. Knudson, M.B. Leuschner, A. Masaike, Y. Masuda, Y. Matsuda, S.I. Penttilä, V.R. Pomeroy, D.A. Smith, W.M. Snow, J.J. Szymanski, S.L. Stephenson, A.K. Thompson, V. Yuan