摘要
为满足南京大陆煤质检测装置辐射防护优化设计的需求,利用Monte Carlo方法模拟了中子、光子在复合屏蔽体中的输运过程,计算了14MeV脉冲中子在使用不同屏蔽材料下的透射剂量率,通过剂量率的比较优化设计了最经济实用的屏蔽体方案,为屏蔽体的设计提供了可靠的科学依据。研究结果表明:以石蜡作屏蔽体主材料为最佳的选择,通过几何优化,有效地降低了防护体的重量,提高了防护体的性价比。
The design of shields in coal measuring devices was simulated to analyze neutron and photon transport in complex shields.The dose transmissivity of 14 MeV pulsed neutrons was calculated for various shielding materials and geometry sizes.The shield design was optimized based on the quality and price.The results show that paraffin is the best choice for shielding material,it effectively reduces the weight of the shield to optimize the geometry of the shield.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第z1期960-962,共3页
Journal of Tsinghua University(Science and Technology)
基金
国家科技部攻关计划项目(国科计函[2004]18号)
