Neutron Beam Effects on Spin Exchange Polarized He-3

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dc.creatorSharma, M.
dc.creatorBabcock, E.
dc.creatorAndersen, K. H.
dc.creatorBarron-Palos, L.
dc.creatorBecker, M.
dc.creatorBoag, S.
dc.creatorChen, W. C.
dc.creatorChupp, T. E.
dc.creatorDanagoulian, A.
dc.creatorGentile, T. R.
dc.creatorKlein, A.
dc.creatorPenttila, S.
dc.creatorPetoukhov, A.
dc.creatorSoldner, T.
dc.creatorTardiff, E. R.
dc.creatorWalker, T. G.
dc.creatorWilburn, W. S.
dc.date2008-02-21
dc.date.accessioned2026-07-07T11:56:14Z
dc.date.available2026-07-07T11:56:14Z
dc.descriptionWe have observed depolarization effects when high intensity cold neutron beams are incident on alkali-metal-spin-exchange polarized He-3 cells used as neutron spin filters. This was first observed as a reduction of the maximum attainable He-3 polarization and was attributed to a decrease of alkali-metal polarization, which led us to directly measure alkali-metal polarization and spin relaxation over a range of neutron fluxes at LANSCE and ILL. The data reveal a new alkali-metal spin-relaxation mechanism that approximately scales as the square root of the neutron capture-flux density incident on the cell. This is consistent with an effect proportional to the recombination-limited ion concentration, but is much larger than expected from earlier work.
dc.descriptionsubmitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0802.3169
dc.identifierhttp://arxiv.org/abs/0802.3169
dc.identifierPhys.Rev.Lett.101:083002,2008
dc.identifierdoi:10.1103/PhysRevLett.101.083002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205515
dc.subjectNuclear Experiment
dc.titleNeutron Beam Effects on Spin Exchange Polarized He-3
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