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

doi:10.1016/j.physb.2004.10.060

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 journal › Article › peer-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 language	English
Pages (from-to)	118-120
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	356
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2004.10.060
State	Published - Feb 15 2005
Externally published	Yes

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.

Funders	Funder number
Engineering and Physical Sciences Research Council	GR/R11957/01

Keywords

Neutron
Polarised He
Spin filter

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10.1016/j.physb.2004.10.060

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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.",

keywords = "Neutron, Polarised He, Spin filter",

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AU - Wallidge, G. W.

AU - Charlton, T. R.

AU - Dalgliesh, R. M.

AU - Parnell, S. R.

AU - Schofield, J. R.

PY - 2005/2/15

Y1 - 2005/2/15

N2 - 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.

AB - 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.

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KW - Polarised He

KW - Spin filter

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ER -

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

Abstract

Funding

Keywords

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