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Affiliation of Author(s):材料科学工程学院
Teaching and Research Group:物理教研室
Journal:Chinese Physics C
Funded by:国家自然科学基金项目
Key Words:BNCT, D-T neutron generator, three-layer moderator, RFNT
Abstract:In boron neutron capture therapy (BNCT), the ratio of the fast neutron flux to the neutron flux in the tumor (RFNT) must be less than 3%. If a D-T neutron generator is used in BNCT, the 14 MeV neutron moderator must be optimized to reduce the RFNT. Based on the neutron moderation theory and the simulation results, tungsten, lead and diamond were used to moderate the 14MeV neutrons. Satisfying RFNT of less than 3%, the maximum neutron flux in the tumor was achieved with a three-layer moderator comprised of a 3-cm-thick tungsten layer, a 14-cm-thick lead layer and a 21-cm-thick diamond layer.
First Author:chengdaowen
Indexed by:Journal paper
Volume:36
Issue:9
Page Number:2
Number of Words:1
ISSN No.:1674-1137
Translation or Not:no
Date of Publication:2012-09-04