Title of article
Spin filters and supermirrors: a comparison study of two methods of high-precision neutron polarisation analysis
Author/Authors
Zimmer، نويسنده , , O. and Hautle، نويسنده , , P. and Heil، نويسنده , , W. and Hofmann، نويسنده , , D. and Humblot، نويسنده , , H. and Krasnoschekova، نويسنده , , I. and Lasakov، نويسنده , , M. and Müller، نويسنده , , T.M. and Nesvizhevsky، نويسنده , , V. and Reich، نويسنده , , J. and Serebrov، نويسنده , , A. and Sobolev، نويسنده , , Yu. and Vassilev، نويسنده , , A.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
8
From page
764
To page
771
Abstract
The precise knowledge of the neutron polarisation is needed in tests of the electroweak Standard Model using angular correlations in polarised neutron beta decay. We performed an experimental comparison study of two different methods of polarisation analysis of a cold neutron beam which are based on spin-dependent reflection, respectively, transmission. The compared devices are a supermirror analyser used in prior neutron decay studies and an opaque transmission spin filter of either polarised 3He or polarised protons. The results of the neutron polarisation measured with the supermirror analyser and with the spin filter coincided in three different experiments within 0.1–0.2%.
Keywords
Spin filters , Neutron polarization analysis , Supermirror
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2000
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2184791
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