Linked Life Data

12570541

Source:http://linkedlifedata.com/resource/pubmed/id/12570541

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-2-6
pubmed:abstractText
The 7Be(p,gamma)8B reaction plays a central role in the evaluation of solar neutrino fluxes. We report on a new precision measurement of the cross section of this reaction, following our previous experiment with an implanted 7Be target, a raster-scanned beam, and the elimination of the backscattering loss. The new measurement incorporates a more abundant 7Be target and a number of improvements in design and procedure. The point at E(lab)=991 keV was measured several times under varying experimental conditions, yielding a value of S17(E(c.m.)=850 keV)=24.0+/-0.5 eV b. Measurements were carried out at lower energies as well. Because of the precise knowledge of the implanted 7Be density profile, it was possible to reconstitute both the off- and on-resonance parts of the cross section and to obtain from the entire set of measurements an extrapolated value of S17(0)=21.2+/-0.7 eV b.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jan
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
022501
pubmed:dateRevised
2004-2-26
pubmed:year
2003
pubmed:articleTitle
Precision measurement of the 7Be(p,gamma)8B cross section with an implanted 7Be target.
pubmed:affiliation
Department of Particle Physics, Weizmann Institute of Science, Rehovot, Israel.
pubmed:publicationType
Journal Article