能谱型中子剂量当量测量技术研究  

Study of Measurements of Neutron Dose Equivalent by Measuring Neutron Spectra

作　　者：刘建忠[1] 王勇[1] 郭子军 刘惠英[1] 周彦坤[1] 

机构地区：[1]中国辐射防护研究院,山西太原030006 [2]广东核电集团有限责任公司,广东深圳518000

出　　处：《核电子学与探测技术》2013年第12期1548-1551,共4页Nuclear Electronics & Detection Technology

摘　　要：为了解决中子剂量监测的难题,对通过解谱计算中子剂量当量的中子测量技术进行了研究,应用位置灵敏3He正比计数器,通过将计数器划分为5个区的方法来模拟多球谱仪的测量流程,解中子的注量能量谱,计算入射中子的辐射量,是一种新颖的场所中子剂量测量技术,能够有效解决未知能量或宽能量范围的中子监测难题。在Am-Be和252Cf的标准辐射场中进行了实际测试,测试结果的相对误差小于30%。In order to solve the problem of neutron dose monitoring , a neutron measurement technology that neu-tron dose equivalent is calculated by unfolding the spectrum is studied .Position sensitive 3 He-filled counter is applied and the counter is divided into five counting regions .The method simulates the measurement process of Bonner sphere spectrometer .And the incident neutron radiation can be quantitatively calculated by unfolding energy spectrum of neutron fluence .It is a kind of new field neutron dose measurement technique , which can effectively solve neutron monitoring problem of the unknown energy or wide energy range sources .It has been tested in the standard neutron radiation field of 252 Cf and Am-Be.The relative errors of test results are less than 30%.

关 键 词：中子 剂量当量 注量能量谱 

分 类 号：O571.5[理学—粒子物理与原子核物理]