Measurements of Isomeric Cross Sections for (n,alpha) Reaction on Sm-144 Isotope for Neutrons Around 14 MeV

Reyhancan İ. A., Durusoy A.

NUCLEAR SCIENCE AND ENGINEERING, vol.174, pp.202-207, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 174
  • Publication Date: 2013
  • Doi Number: 10.13182/nse11-96
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.202-207
  • Yıldız Technical University Affiliated: Yes


In this study, the activation cross sections were, first, measured for the Sm-144(n,alpha)Nd-141m reaction at six different neutron energies from 13.57 to 14.83 MeV. The fast neutrons were produced by using a neutron generator, through the H-3(H-2,n)He-4 reaction. The cyclic activation technique was used as the irradiation and counting method. Induced gamma activities were measured using a high-resolution gamma-ray spectrometer equipped with a high-purity germanium detector. In the cross-section measurements, corrections were made regarding the effects of gamma-ray attenuation, dead time, fluctuation of neutron flux, and low-energy neutrons. The measured cross sections were compared with the results of model calculations (TALYS code).