Title of article
A measurement of the absolute neutron beam polarization produced by an optically pumped 3He neutron spin filter
Author/Authors
Rich، نويسنده , , D.R. and Bowman، نويسنده , , J.D. and Crawford، نويسنده , , B.E. and Delheij، نويسنده , , P.P.J. and Espy، نويسنده , , M.A. and Haseyama، نويسنده , , T. and Jones، نويسنده , , G. and Keith، نويسنده , , C.D. and Knudson، نويسنده , , J. and Leuschner، نويسنده , , M.B. and Masaike، نويسنده , , A. and Masuda، نويسنده , , Y. and Matsuda، نويسنده , , Y. and Penttilن، نويسنده , , S.I. and Pomeroy، نويسنده , , V.R. and Smith، نويسنده , , D.A. and Snow، نويسنده , , W.M. and Szymanski، نويسنده , , J.J. and Stephenson، نويسنده , , S.L. and Thompson، نويسنده , , A.K. and Yuan، نويسنده , , V.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
23
From page
431
To page
453
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 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.
Keywords
Neutron polarization , Polarized 3He , Neutron decay
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2002
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2195131
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