An Am/Be neutron source and its use in integral tests of differential neutron reaction cross-section data

Appl Radiat Isot. 2010 Sep;68(9):1656-61. doi: 10.1016/j.apradiso.2010.02.006. Epub 2010 Feb 20.

Abstract

An Am/Be neutron source, installed recently at the Rajshahi University, is described. Neutron flux mapping was done using the nuclear reactions (197)Au(n,gamma)(198)Au, (113)In(n,gamma)(114m)In, (115)In(n,n'gamma)(115m)In and (58)Ni(n,p)(58)Co. An approximate validation of the neutron spectral shape was done using five neutron threshold detectors and the iterative unfolding code SULSA. Integral cross sections of the reactions (54)Fe(n,p)(54)Mn, (59)Co(n,p)(59)Fe and (92)Mo(n,p)(92m)Nb were measured with fast neutrons (E(n)>1.5MeV) and compared with data calculated using the neutron spectral distribution and the excitation function of each reaction given in data libraries: an agreement within +/-6% was found.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Americium / analysis*
  • Americium / chemistry*
  • Beryllium / analysis*
  • Beryllium / chemistry*
  • Neutrons*
  • Radiation Dosage
  • Radiometry / methods*

Substances

  • Beryllium
  • Americium