Benchmark experiment on LiAlO_2, Li_2TiO_3 and Li_2ZrO_3 assemblies with D-T neutrons-leakage neutron spectrum measurement

摘要

For the three materials LiAlO_2, Li_2TiO_3 and Li_2ZrO_3, known as advanced breeder material for a fusion reactor, D-T neutron benchmark experiments have been conducted at fusion neutronics source (FNS) of Japan Atomic Energy Research Institute (JAERI), Japan, to validate five nuclear data files, i.e. JENDL-3.2, JENDL fusion file, ENDF/N-VI, FENDL/E-1.0 and FENDL/E-2.0. From the result, all the nuclear data files were confirmed to be fairly Reliable with respect to the prediction of neutron spectrum in the use of LiAlO_2 and Li_2 and Li_2TIO_3. However, it was Ecommended that the inelastic scattering neutron spectra of oxygen, lithium and aluminium in the five neuclear data Files had to be re-examined. As for zirconium, it was pointed out that the Zr(n, 2n) cross section could be Overestimated for the five nuclear data files.