Vol. XVIII, No. 1, Pp. 1-50
June 2003
UDC 621.039+614.876:504.06
YU ISSN 1451-3994

Pages: 22-30

Authors: Mila Pandurović, Strahinja Lukić, Paule Baumann, Stephane Hilaire, Jasmina Jeknić, Erwin Jericha, Stevan Jokić, Maelle Kerveno, Cristian L. Mihailescu, Andreas Pavlik, Arjan Plompen, Gerard Rudolf
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Abstract

New concepts in nuclear reactor technology require precise neutron reaction data in the intermediate and high energy range. At present, experimental and evaluated nuclear data, particularly for (n, xn) reactions, are very scarce. Moreover, real discrepancies exist between different databases.
The lack of experimental data is essentially due to the difficulty of measuring (n, xn) reactions. No universal method applicable to all isotopes exists. One of the possible methods is the in-beam g-ray spectroscopy and neutron time of flight technique on white neutron beams. In this way one actually directly measures (n, xng) reaction cross-sections. These serve as a starting point in the subsequent derivation of (n, xn) reaction cross-sections using nuclear models. This method was applied with a natural lead sample at the GELINA white neutron beam facility in Geel, Belgium.

Key words: (n, xn) reactions, cross-sections, g-ray spectroscopy

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