QSNB-Ⅰ井型中子测量装置的设计  

The Development of QSNB-I Well-type Neutron Counting Device

作　　者：任忠国[1,2] 施俊[2] 张明[2] 赵志平[2] 刘小亮[3] 胡碧涛[1] 

机构地区：[1]兰州大学核科学与技术学院 [2]中国工程物理研究院 [3]中国人民解放军91991部队

出　　处：《核电子学与探测技术》2011年第3期348-350,372,共4页Nuclear Electronics & Detection Technology

摘　　要：研制了QSNB-Ⅰ井型中子测量装置。该装置探测腔直径12 cm,使用8支^3He正比计数管,采用聚乙烯作为慢化体材料;为了提高装置的可靠性,设计了新型的连接盒;并对装置的探测效率,探测效率与源位置关系进行了模拟计算与测试。结果表明QSNB-Ⅰ井型中子测量装置具有较小的空间位置灵敏性,测试探测效率15.6%,与模拟结果16.4%具有较高的一致性。In the present work,QSNB-I well-type neutron counting device is developed.The device detection chamber diameter is 12 cm,with 8 ^3He proportional counters in a polyethylene body.In order to improve the device＇s reliability,a new type of junction box is designed.The detection efficiency of the device,detection efficiency and the sourcepositional relationship are simulated and tested.The obtained results show that the well -type neutron counting device has a smaller spatial sensitivity and the test detection efficiency of 15.6%, which is in good agreement with the simulation results of 16.4%.

关 键 词：井型中子测量装置 连接盒 模拟 

分 类 号：TL816[核科学技术—核技术及应用]