# Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (5): 107

• NUCLEAR ENERGY SCIENCE AND ENGINEERING •

### The design of ‘‘multiple energies from one source’’ in D-T neutron tube

Hui-Ping Guo, Kuo Zhao, Ning Lü, Zhi-Hao Wei, Wen-Hui Lü

1. Xi’an Research Institute of Hi-Tech, Xi’an 710025, China
• Contact: Kuo Zhao E-mail:zhao13772073797@163.com
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Hui-Ping Guo, Kuo Zhao, Ning Lü, Zhi-Hao Wei, Wen-Hui Lü. The design of ‘‘multiple energies from one source’’ in D-T neutron tube.Nuclear Science and Techniques, 2016, 27(5): 107

Abstract:

To obtain multiple monoenergetic neutron sources and realize the on-site calibration of radiation monitoring equipment for nuclear-involved places, the structural characteristics and neutron source features of D-T neutron tube were analyzed; Monte Carlo method was adopted to simulate the effect of interaction between typical materials and different energy neutrons; multilayered shielding materials were combined and optimized to acquire the optimal scheme to shield the neutron sources from the neutron tube. On the base, a tapered alignment filtration construction was designed and Monte Carlo method was employed to simulate the effect of alignment construction. The result showed that the tapered alignment filtration construction can create monoenergetic neutrons including 14.1 MeV, 0.18 MeV and thermal neutrons and demonstrated good monochrome performance which provides multiple monoenergetic sources for the on-site calibration.