Measurement of neutron-induced activation cross-sections using spallation source at JINR and neutronic validation of the Dubna code
A beam of 1 GeV proton coming from Dubna Nuclotron colliding with a lead target surrounded by 6 cm paraffin produces spallation neutrons. A Th-foil was kept on lead target (neutron spallation source) in a direct stream of neutrons for activation and other samples of 197Au, 209Bi, 59Co, 115In and 181Ta were irradiated by moderated beam of neutrons passing through 6 cm paraffin moderator. The gamma spectra of irradiated samples were analyzed using gamma spectrometry and DEIMOS software to measure the neutron cross-section. For this purpose neutron fluence at the positions of samples is also estimated using PREPRO software. The results of cross-sections for reactions 232Th($n, \gamma$), 232Th($n, 2n$), 197Au($n, \gamma$), 197Au($n, \alpha$), 197Au($n, xn$), 59Co($n, \alpha$), 59Co($n, xn$), 181Ta($n, \gamma$) and 181Ta($n, xn$) are given in this paper. Neutronics validation of the Dubna Cascade Code is also done using cross-section data by other experiments.
Manish Sharma1 V Kumar1 H Kumawat1 J Adam2 V S Barashenkov2 S Ganesan3 S Golovatiouk2 S K Gupta1 S Kailas3 M I Krivopustov2 H S Palsania1 V Pronskikh2 V M Tsoupko-Sitnikov2 N Vladimirova2 H Westmeier4 W Westmeier4
Volume 96, 2022
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