Abstract
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, γ), 232Th(n, 2n), 197Au(n,γ), 197Au(n, α), 197Au(n, xn), 59Co(n, α), 59Co(n, xn), 181Ta(n, γ) 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.
Original language | English |
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Pages (from-to) | 307-313 |
Number of pages | 7 |
Journal | Pramana - Journal of Physics |
Volume | 68 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2007 |
Externally published | Yes |
Funding
Authors are thankful to LHE of JINR for providing beam facility and authors from India acknowledge thanks to ILTP (DST) and BRNS (DAE) for the financial assistance. One of the authors Manish Sharma is thankful to CSIR, New Delhi for the financial assistance.
Keywords
- (n, xn) reactions
- Activation cross-section
- DEIMOS
- Dubna cascade code
- PREPRO
- Spallation neutrons