Linked Life Data

18764610

Source:http://linkedlifedata.com/resource/pubmed/id/18764610

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2008-9-3
pubmed:abstractText
We have observed depolarization effects when high intensity cold neutron beams are incident on alkali-metal spin-exchange-polarized 3He cells used as neutron spin filters. This was first observed as a reduction of the maximum attainable 3He 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 Los Alamos Neutron Science Center and Institute Laue-Langevin. The data reveal a new alkali-metal spin-relaxation mechanism that approximately scales as sqrt[phi_{n}], where phi_{n} is the neutron capture-flux density incident on the cell. This is consistent with an effect proportional to the concentration of electron-ion pairs but is much larger than expected from earlier work.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
083002
pubmed:year
2008
pubmed:articleTitle
Neutron beam effects on spin-exchange-polarized 3He.
pubmed:affiliation
FOCUS Center and Physics Department, University of Michigan, Ann Arbor, Michigan 48104, USA.
pubmed:publicationType
Journal Article