一款G-M计数管能量响应补偿软件的研究  

Study on Energy Compensate of the G-M Counter Based on the General Software

作　　者：李志远[1] 郑永春[1] 张皓[1] 陈洪涛[1] 施寿朋[1] 邵晖[1] 

机构地区：[1]防化研究院,北京102205

出　　处：《核电子学与探测技术》2012年第12期1385-1387,1457,共4页Nuclear Electronics & Detection Technology

摘　　要：G-M计数管对低能光子的探测都存在过响应。若不进行补偿,其能量响应满足不了要求。常用的补偿方法是使用开孔的过滤片,若用实验的方法得出过滤片成分和开孔大小,过程往往比较复杂。论文借助MCNP5和LabVIEW软件,完成了一种G-M计数管能量补偿设计。该方法用MCNP5模拟计算裸管的能量响应值,然后在LabVIEW中应用该值计算出所需要的补偿材料成分、材料厚度、开孔率以及归一值。通过实验对计算出的结果进行了验证,结果表明补偿效果比较理想,完全满足仪器能响要求。General detectors exists excess response over the low energy photon region, the accuracy of the meas- urement can be affected by the no energy compensation detectors in an instrument. A compensation filter with holes would be commonly used. The conventional calculation and experimental method was complex. The paper introduced a method that could be used in compensating and optimizating the energy response of the G - M Counter by MCNP5 and LabVIEW. That was simulate and compute the energy response value of the bare - tube by MCNPS, and gave it to LabVIEW, the composition, thickness, poriness of the compensate material and nor- malized value wound be worked out. Tested and verified the result, compensation effect was ideal, and met the instrument requirements completely. That confirmed the method was fea^ihl~.

关 键 词：G—M计数管 能量补偿 MCNP5 LABVIEW 

分 类 号：TL84[核科学技术—核技术及应用]