Optimization of beam shaping assembly based on D-T neutron generator and dose evaluation for BNCT

被引:0
|
作者
Hamza Naeem
Chaobin Chen
Huaqing Zheng
Jing Song
机构
[1] Chinese Academy of Sciences,Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology
[2] Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,Key Laboratory of Neutronics and Radiation Safety
[3] University of Science and Technology of China,Key Laboratory of Neutronics and Radiation Safety
[4] Institute of Nuclear Energy Safety Technology,undefined
[5] Chinese Academy of Sciences,undefined
[6] Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions,undefined
[7] Institute of Nuclear Energy Safety Technology,undefined
[8] Chinese Academy of Sciences,undefined
来源
Journal of the Korean Physical Society | 2017年 / 70卷
关键词
BNCT; BSA; HINEG; SuperMC;
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学科分类号
摘要
The feasibility of developing an epithermal neutron beam for a boron neutron capture therapy (BNCT) facility based on a high intensity D-T fusion neutron generator (HINEG) and using the Monte Carlo code SuperMC (Super Monte Carlo simulation program for nuclear and radiation process) is proposed in this study. The Monte Carlo code SuperMC is used to determine and optimize the final configuration of the beam shaping assembly (BSA). The optimal BSA design in a cylindrical geometry which consists of a natural uranium sphere (14 cm) as a neutron multiplier, AlF3 and TiF3 as moderators (20 cm each), Cd (1 mm) as a thermal neutron filter, Bi (5 cm) as a gamma shield, and Pb as a reflector and collimator to guide neutrons towards the exit window. The epithermal neutron beam flux of the proposed model is 5.73 × 109 n/cm2s, and other dosimetric parameters for the BNCT reported by IAEA-TECDOC-1223 have been verified. The phantom dose analysis shows that the designed BSA is accurate, efficient and suitable for BNCT applications. Thus, the Monte Carlo code SuperMC is concluded to be capable of simulating the BSA and the dose calculation for BNCT, and high epithermal flux can be achieved using proposed BSA.
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页码:816 / 821
页数:5
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