摘要
为解决高温气冷堆在线燃耗测量系统工程测量上限要求,对测量系统的装置结构进行了优化设计。优化设计中,利用MCNP程序模拟了屏蔽体、准直器及多球测量对探测上限的影响,提出了一种新的探测装置优化方案。实验结果表明:该优化方案可提高屏蔽效率,能满足HPGe探测器测量上限要求。
To solve the problem of the upper limit of the radioactivity measuring requirements for the HTGR on- line burn- up measure system,the structure of the device can be further optimized. Aim to optimized system,this thesis uses MCNP to simulate shield,collimator and multi- sphere impact on the detection upper limit. Making a synthesis of simulation and actual measured results an optimizing structure is design. The result shows: this plan can enhance the shield efficiency and meet the upper limit counts for the HPGe detector.
出处
《核电子学与探测技术》
CAS
北大核心
2015年第11期1154-1158,共5页
Nuclear Electronics & Detection Technology
关键词
燃耗测量
屏蔽效率
探测上限
蒙特卡罗模拟
burn-up measurement
shield efficiency
the upper limit counts
MCNP