Fast neutron scattering on Gallium target at 14.8 MeV

作者：Han, R.^*; Wada, R.; Chen, Z.; Nie, Y.; Liu, X.; Zhang, S.; Ren, P.; Jia, B.; Tian, G.; Luo, F.; Lin, W.; Liu, J.; Shi, F.; Huang, M.; Ruan, X.; Ren, J.; Zhou, Z.; Huang, H.; Bao, J.; Zhang, K.; Hu, B.

来源：Nuclear Physics A, 2015, 936: 17-28.

DOI：10.1016/j.nuclphysa.2015.01.004

• Neutron leakage spectra
• Time-of-flight
• Evaluated nuclear data
• MCNP simulation
• Talys code
• Gallium

Benchmarking of evaluated nuclear data libraries was performed for similar to 14.8 MeV neutrons on Gallium targets. The experiments were performed at China Institute of Atomic Energy (CIAE). Solid samples of natural Gallium (3.2 cm and 6.4 cm thick) were bombarded by similar to 14.8 MeV neutrons and leakage neutron energy spectra were measured at 60 degrees and 120 degrees. The measured spectra are rather well reproduced by MCNP-4C simulations with the CENDL3.1, ENDF/B-VII and JENDL-4.0 evaluated nuclear data libraries, except for the inelastic contributions around E-n = 10-13 MeV. All three libraries significantly underestimate the inelastic contributions. The inelastic contributions are further studied, using the Talys simulation code and the experimental spectra are reproduced reasonably well in the whole energy range by the Talys calculation, including the inelastic contributions.

• 出版日期2015-4
• 单位兰州大学; 中国科学院大学; 中国原子能科学研究院; 中国科学院近代物理研究所