Validation of Gamma-Ray Production Data of Iron in JENDL-3.2 with Shielding Benchmark

Abstract

An integral test of γ-ray production data of iron in the latest version of Japanese Evaluated Nuclear Data Library (JENDL-3.2) has been performed by means of a shielding benchmark analysis of KfK leakage neutron and γ-ray spectrum measurements from iron spheres with a ²⁵²Cf source in the center. Two comprehensive systems which consist of a continuous-energy Monte Carlo method and a multi-group Sn transport method have been adopted in this benchmark analysis. For comparison, analyses with JENDL-3.1, FENDL-1 and ENDF/B-IV have been also carried out. The calculation using JENDL-3.2 showed a good agreement with the experiment. It has been concluded that the γ-ray production data of iron in JENDL-3.2 were applicable for use of shielding designs and analyses of the fission neutron source problem.

KEYWORDS:

• nuclear data
• cross sections
• integral test
• gamma-ray production data
• iron
• neutrons
• secondary gamma-ray
• shielding
• JENDE-3.2
• JENDL-3.1
• FENDL-1
• ENDF/B-IV
• MCNP4
• NJOY
• DIAC
• RADHEAT-V4