Progress toward polarised 3-He neutron spin filters using spin exchange optical pumping at the ISIS pulsed neutron source

G. W. Wallidge, T. R. Charlton, R. M. Dalgliesh, S. R. Parnell, J. R. Schofield

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We report the first results in the development of spin exchange optical pumping for use as a polarised 3He spin filter at the ISIS pulsed neutron source Helium polarisation of 35% in a cell of 0.8 bar has been measured with neutrons and 23% in a 1.6 bar cell with NMR. Also reported is the progress in developing magnetic environments. The characteristics of a few designs have been investigated by modelling, measurement of the magnetic field and relaxation of the 3He polarisation.

Original languageEnglish
Pages (from-to)118-120
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Volume356
Issue number1-4 SPEC. ISS.
DOIs
StatePublished - Feb 15 2005
Externally publishedYes

Funding

We would like to thank T.R. Gentile's group at NIST, Gathersburg, Maryland, USA whose assistance and loan of cells have been invaluable in getting the polarised 3 He project at ISIS started. This work was supported under EPSRC Grant GR/R11957/01.

FundersFunder number
Engineering and Physical Sciences Research CouncilGR/R11957/01

    Keywords

    • Neutron
    • Polarised He
    • Spin filter

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