Return To: Session FTP1 - Technology Developments
Prev Page: (FTP1/29) Oxidation of Carbon Based First Wall Materials
Next Page: (FTP1/31) Gyrotrons for Fusion. Status and Prospects.

(FTP1/30) Iron Neutron Data Benchmarking for 14 MeV Source

S. I. Belousov¹⁾, Kr. D. Ilieva^1)
 
1) Institute for Nuclear Research and Nuclear Energy of Bulgarian Academy of Science

Abstract.  Iron neutron data benchmarking is presented. The iron is widely used as constructional and shields material for nuclear fusion and fission systems. The Iron cross section data from FENDL/MG-1.0 and VITAMIN-B6 were tested by benchmark experiment of integral neutronics' experiment collection implemented by the IAEA Nuclear Data Section. A discouraging bad consistency of calculated and measured results has been obtained for the neutron leakage from iron media. While the discrepancy for the FENDL/MG-1.0 is especially significant in the energy range 0.5-10 MeV for neutron transmission through media with thickness greater than 20 cm, for the VITAMIN-B6 the most inconsistency was obtained in the vicinity of the fusion peak for neutron transmission through lower thickness media. The presented results demonstrate that the tested Iron muligroup cross section data have to be significantly improved so that the neutron transport calculation results to be reliable in order to warrant nuclear safety requirements.

Read the full paper in PDF format.