The European Physical Journal A

, 47:51

Measurement of the neutron capture cross-section of 232Th using the neutron activation technique

Authors

    • Radiochemistry DivisionBhabha Atomic Research Centre
  • P. M. Prajapati
    • Reactor Physics Design DivisionBhabha Atomic Research Centre
    • Physics Department, Faculty of ScienceThe M. S. University of Baroda
  • S. V. Surayanarayana
    • Nuclear Physics DivisionBhabha Atomic Research Centre
  • K. C. Jagadeesan
    • Radiopharmaceutical DivisionBhabha Atomic Research Centre
  • S. V. Thakare
    • Radiopharmaceutical DivisionBhabha Atomic Research Centre
  • D. Raj
    • Reactor Physics Design DivisionBhabha Atomic Research Centre
  • V. K. Mulik
    • Department of PhysicsUniversity of Pune
  • B. S. Sivashankar
    • Department of StatisticsManipal University
  • B. K. Nayak
    • Nuclear Physics DivisionBhabha Atomic Research Centre
  • S. C. Sharma
    • Nuclear Physics DivisionBhabha Atomic Research Centre
  • S. Mukherjee
    • Physics Department, Faculty of ScienceThe M. S. University of Baroda
  • Sarbjit Singh
    • Radiochemistry DivisionBhabha Atomic Research Centre
  • A. Goswami
    • Radiochemistry DivisionBhabha Atomic Research Centre
  • S. Ganesan
    • Reactor Physics Design DivisionBhabha Atomic Research Centre
  • V. K. Manchanda
    • Radiochemistry DivisionBhabha Atomic Research Centre
Regular Article - Experimental Physics

DOI: 10.1140/epja/i2011-11051-2

Cite this article as:
Naik, H., Prajapati, P.M., Surayanarayana, S.V. et al. Eur. Phys. J. A (2011) 47: 51. doi:10.1140/epja/i2011-11051-2

Abstract.

The 232Th(n,\( \gamma\)) reaction cross-section at average neutron energies of 3.7±0.3 MeV and 9.85±0.38 MeV from the 7Li(p, n) reaction has been determined for the first time using activation and off-line \( \gamma\) -ray spectrometric technique. The 232Th(n, 2n) reaction cross-section at the average neutron energy of 9.85±0.38 MeV has been also determined using the same technique. The experimentally determined 232Th(n,\( \gamma\)) and 232Th(n, 2n) reaction cross-sections were compared with the evaluated data of ENDF/B-VII, JENDL-4.0 and JEFF-3.1 and were found to be in good agreement. The present data along with literature data in a wide range of neutron energies were interpreted in terms of competition between different reaction channels including fission. The 232Th(n,\( \gamma\)) and 232Th(n, 2n) reaction cross-sections were also calculated theoretically using the TALYS 1.2 computer code and were found to be slightly higher than the experimental data.

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© SIF, Springer-Verlag Berlin Heidelberg 2011