Open AccessDesigning Neutron Shield Material for D-T Neutron Generator
Author(s) -
Xianglong Li,
Meilin Cong,
Guifu Yang,
Weihua Su
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1739/1/012012
Subject(s) - neutron generator , neutron , materials science , boron , electromagnetic shielding , copper , polyethylene , shield , neutron temperature , neutron cross section , neutron source , neutron flux , neutron radiation , radiochemistry , nuclear physics , composite material , physics , metallurgy , chemistry , geology , petrology
If hydrogen-rich material is used to shield the 14 MeV neutrons produced by D-T neutron generator whose neutron yield is 10 8 n/s, its thickness must be more than 74 cm to make dose of neutron radiation less than 0.025 mSv/h. For decrease the thickness, two layers material composed of boron-polyethylene and copper used as 14 MeV neutron shielding material. The calculation result shows that the minimum thickness of the two layers material is 52 cm, in which the thicknesses of copper and boron-polyethylene are 38 cm and 14 cm and the boron concentration is 1.00%.