A wide angle neutron spin filter system using polarized 3He

被引：16

作者：

Fu, C. B. ^{[1
,2
]}

Gentile, T. R. ^{[1
]}

Jones, G. L. ^{[3
]}

Chen, W. C. ^{[1
,5
]}

Erwin, R. ^{[1
]}

Watson, S. ^{[1
]}

Broholm, C. ^{[1
,4
]}

Rodriguez-Rivera, J. A. ^{[1
,5
]}

Scherschligt, J. ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[2] Indiana Univ, Bloomington, IN 47408 USA

[3] Hamilton Coll, Dept Phys, Clinton, NY 13323 USA

[4] Johns Hopkins Univ, Baltimore, MD 21218 USA

[5] Univ Maryland, College Pk, MD 20742 USA

来源：

PHYSICA B-CONDENSED MATTER | 2011年 / 406卷 / 12期

关键词：

Polarized He-3; He-3 neutron spin filter; Wide angle He-3 cell; RELAXATION; PRESSURES;

D O I：

10.1016/j.physb.2010.10.002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Polarized He-3 neutron spin filters can operate over a wide neutron energy range and provide a large angular acceptance. A compact He-3 neutron spin filter system has been developed for the Multi-Axis Crystal Spectrometer at the National Institute of Standards and Technology (NIST) Center for Neutron Research. Sealed He-3 cells, polarized by spin-exchange optical pumping, are used as polarizer and analyzer. The polarization of the neutrons incident on the sample is inverted by flipping the polarization of the He-3 gas in the polarizer, with only a small effect on the analyzer cells. The cell fabrication process, He-3 spin flipper, and the holding magnetic field are discussed and we present the results of a first on-line test. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2419 / 2423

页数：5

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