Journal of Radioanalytical and Nuclear Chemistry

, Volume 293, Issue 2, pp 469–478

Measurement of the neutron capture cross-section of 238U using the neutron activation technique

  • H. Naik
  • S. V. Surayanarayana
  • V. K. Mulik
  • P. M. Prajapati
  • B. S. Shivashankar
  • K. C. Jagadeesan
  • S. V. Thakare
  • D. Raj
  • S. C. Sharma
  • P. V. Bhagwat
  • S. D. Dhole
  • S. Ganesan
  • V. N. Bhoraskar
  • A. Goswami
Article

DOI: 10.1007/s10967-012-1815-x

Cite this article as:
Naik, H., Surayanarayana, S.V., Mulik, V.K. et al. J Radioanal Nucl Chem (2012) 293: 469. doi:10.1007/s10967-012-1815-x

Abstract

The 238U(n, γ)239U reaction cross-section at average neutron energy of 3.7 ± 0.3 MeV from the 7Li(p, n)7Be reaction has been determined using activation and off-line γ-ray spectrometric technique. The 238U(n, γ)239U and 238U(n, 2n)237U reaction cross-sections at average neutron energy of 9.85 ± 0.38 MeV from the same 7Li(p, n)7Be reaction have been also determined using the above technique. The experimentally determined 238U(n, γ)239U and 238U(n, 2n)237U reaction cross-sections were compared with the evaluated data of ENDF/B-VII, JENDL-4.0, JEFF-3.1 and CENDL-3.1. The experimental values were found to be in general agreement with the evaluated value based on ENDF/B-VII, and JENDL-4.0 but not with the JEFF-3.1 and CENDL-3.1. 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 238U(n, γ)239U and 238U(n, 2n)237U reaction cross-sections were also calculated theoretically using the TALYS 1.2 computer code and were also found to be in agreement experimental data.

Keywords

238U(n, γ)239U and 238U(n, 2n)237U reaction cross-sections7Li(p, n)7Be reactionAverage neutron energyEn = 3.7 ± 0.3 MeV and 9.85 ± 0.38 MeVOff-line γ-ray spectrometric techniqueTALYS calculation

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  • H. Naik
    • 1
  • S. V. Surayanarayana
    • 2
  • V. K. Mulik
    • 3
  • P. M. Prajapati
    • 4
  • B. S. Shivashankar
    • 5
  • K. C. Jagadeesan
    • 6
  • S. V. Thakare
    • 6
  • D. Raj
    • 7
  • S. C. Sharma
    • 2
  • P. V. Bhagwat
    • 2
  • S. D. Dhole
    • 3
  • S. Ganesan
    • 7
  • V. N. Bhoraskar
    • 3
  • A. Goswami
    • 1
  1. 1.Radiochemistry DivisionBhabha Atomic Research CentreMumbaiIndia
  2. 2.Nuclear Physics DivisionBhabha Atomic Research CentreMumbaiIndia
  3. 3.Department of PhysicsUniversity of PunePuneIndia
  4. 4.Department of Physics, Faculty of ScienceThe M. S. University of BarodaVadodaraIndia
  5. 5.Department of StatisticsManipal UniversityManipalIndia
  6. 6.Radiopharmaceutical DivisionBhabha Atomic Research CentreMumbaiIndia
  7. 7.Reactor Physics Design DivisionBhabha Atomic Research CentreMumbaiIndia