Open Access
Issue
ND 2007
2007
Article Number 023
Number of page(s) 4
Section Nuclear structure and decay data
DOI http://dx.doi.org/10.1051/ndata:07304
Published online 17 June 2008
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07304

Beta-decay total absorption measurements for nuclear technology and astrophysics

Jose L. Tain

Instituto de Fisica Corpuscular, C.S.I.C.-U. Valencia, 46071 Valencia, Spain

tain@ific.uv.es

Published online: 21 May 2008

Abstract
An accurate determination of the beta-decay intensity distribution is of importance for basic nuclear physics but also in the fields of reactor technology, astrophysics and fundamental interactions. Most of present information comes from experiments performed with high resolution low efficiency Ge γ-ray spectroscopy, which fails to locate the beta intensity at high excitation energies in complex decays. The total absorption spectroscopy technique with large 4π scintillation detectors can give the correct answer but requires an involved procedure in order to extract the information. Recent work on the systematization of the analysis methods and on the evaluation of the associated systematic uncertainties shows that reliable beta strength distributions can indeed be obtained.



© CEA 2008