D-T中子管照相装置的感生放射性研究

Abstract

Abstract: This article introduces the application and advantages of the D-T neutron tube camera device, and analyzes its induced radioactive hazards in combination with the characteristics of the D-T neutron tube and the characteristics of fast neutron photography. The induced radioactivity was calculated using the ENDF database. Relying on the IAEA’s definition and calculation method of exempt activity, the concept of risk index was put forward to visually express the degree of danger of nuclear induced radioactivity. Using methods such as calculation of risk index and horizontal comparison, the contribution of common nuclides, elements, and stainless steel to induced radioactivity risk were compared. The study found that the elements Mo, Fe, and Cu have greater risks, and the ferritic stainless steel 16Cr25 N has less risks. In the selection of stainless steel, the content of Fe, Ni, Mn and Cr should be paid attention to.

Key words: D-T neutron tube, risk index, induced radioactivity, ENDF database

CLC Number:

TL77

WANG Zhenyu, HUANG Weiqi, LAI Yongfang, SUN Jian. Study on induced radioactivity of D-T neutron tube radiography device[J].RADIATION PROTECTION, 2021, 41(S1): 1-6.

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Study on induced radioactivity of D-T neutron tube radiography device

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