Determination of the 209Bi(n,gamma) Capture Cross Section at a Cold Neutron Beam
The total capture cross section of 209Bi was determined at the cold neutron beam PGAA-NIPS facilities at the Budapest Neutron Centre. The measurements were performed using a coaxial HPGe detector with Compton suppression. The total and partial gamma ray production cross sections were deduced relative to the 14N(n,gamma) partial gamma ray production cross section. By using a bismuth nitrate stoichiometric compound as the sample, we excluded various systematic uncertainties. The total capture cross section is in very good agreement with the compilation of Mughaghab, but is slightly lower than the most recent value determined at the high flux reactor of the ILL in Grenoble, France. We also performed measurements using a 0.5 mm thin Bi metal disc. The relative intensitites determined from the Bi disc and the compound samples are in good agreement.
BORELLA Alessandro;
MOENS Andre;
SCHILLEBEECKX Peter;
VAN BIJLEN Roger;
MOLNAR Gabor;
BELGYA Tamas;
REVAY Zs.;
SZENTMIKLOSI Laszlo;
2006-01-31
AKADEMIAI KIADO
JRC32544
https://publications.jrc.ec.europa.eu/repository/handle/JRC32544,
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