Designing Neutron Shield Material for D-T Neutron Generator

If hydrogen-rich material is used to shield the 14 MeV neutrons produced by D-T neutron generator whose neutron yield is 108 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-polyethyl...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1739; no. 1; pp. 12012 - 12017
Main Authors Li, Xianglong, Cong, Meilin, Yang, Guifu, Su, Weihua
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2021
Subjects
14 MeV neutron
Boron
Copper
D-T neutron generator
Neutrons
Physics
Polyethylene
Polyethylenes
Radiation dosage
radiation dose
Radiation shielding
Thickness
two layers material
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Summary:If hydrogen-rich material is used to shield the 14 MeV neutrons produced by D-T neutron generator whose neutron yield is 108 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%.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1739/1/012012