Physics – Nuclear Physics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvc..45.2487x&link_type=abstract
Physical Review C (Nuclear Physics), Volume 45, Issue 5, May 1992, pp.2487-2493
Physics
Nuclear Physics
2
Radiative Capture, 90<=A<=149, Origin, Formation, And Abundances Of The Elements
Scientific paper
The currently favored s process scenario of helium shell burning in low mass stars involves a range of thermal energies from kT=12 to 25 keV with most of the neutron exposure taking place at low temperatures. Therefore, differential cross sections are required down to the region of resolved resonances for the reliable determination of the Maxwellian-averaged cross sections typical of the stellar plasma. This work deals with the neutron capture cross sections of the important s only isotopes 122Te, 123Te, and 124Te, which were measured between 1 and 60 keV neutron energy with a setup of Moxon-Rae detectors. The systematic uncertainties achieved in this experiment are ~5%, but statistical uncertainties are smaller than 2%. In addition to the Moxon-Rae detectors, the setup includes a 6Li glass detector which could be used to determine the total neutron cross sections simultaneously. These results represent the first set of experimental data in this energy range.
Gerstenhöfer Th. W.
Jaag S.
Käppeler Franz
Wisshak K.
Xia Yong
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