Applications of He-3 neutron spin filters at the NCNR
Type of Work
Article
Date
9-1-2009
Journal Title
Physica B: Condensed Matter
Journal ISSN
0921-4526
Journal Volume
404
Journal Issue
17
First Page
2663
Last Page
2666
DOI
10.1016/j.physb.2009.06.040
Abstract
At the NIST Center for Neutron Research (NCNR), we have applied He-3 neutron spin filters (NSFs) to the instruments where He-3 NSFs are advantageous, such as thermal triple-axis spectrometry, small-angle neutron scattering, and diffuse reflectometry. We present the status of our development and application of this method, including polarized gas production by spin-exchange optical pumping, magnetostatic cavities for storage of the polarized gas on the beam line, and nuclear magnetic resonance (NMR)-based, on-line monitoring and reversal of the He-3 polarization. We present the status of developing user-friendly interfaces incorporated into the instrument software to handle these He-3 neutron spin filters while taking data and performing data analysis. Finally we discuss the status of development of a polarization capability on the multi-axis crystal spectrometer, which requires polarization analysis over a 220 degrees angular range. (C) 2009 Elsevier B.V. All rights reserved.
Citation Information
Chen, W. C.; Erwin, R.; McIver III, J. W.; Watson, S.; Fu, C. B.; Gentile, T. R.; Borchers, J. A.; Lynn, J. W.; and Jones, Gordon L., "Applications of He-3 neutron spin filters at the NCNR" (2009). Hamilton Digital Commons.
https://digitalcommons.hamilton.edu/articles/26
Hamilton Areas of Study
Physics
Notes
Article:
"Applications of He-3 neutron spin filters at the NCNR," Physica B-Condensed Matter 404, 2663-2666 (2009). doi: 10.1016/j.physb.2009.06.040.
Authors:
W.C. Chen, R. Erwin, J.W. McIver III, S. Watson, C.B. Fu, T.R. Gentile, J.A. Borchers, J.W. Lynn, G.L. Jones