摘要
描述了一种采用ＣＡＭＡＣ一微机系统采集数据，电荷比较法测量液体闪烁体的中子、γ射线分辨性能的新方法，同时测量了液体闪烁体ＮＥ２１３或ＢＣ５１９样品在２４１Ａｍ－Ｂｅ或２５２Ｃｆ中子源照射下的脉冲总电荷及多路不同时间段的部分电荷，对数据的离线分析给出闪烁体ｎ，γ分辨与延迟时间及能量分布的关系，并可利用ｎ，γ鉴别方法测量中子或γ射线的能量分布及闪烁体快或慢脉冲形状．
A new method used to discriminate neutrons and photons in liquidscintillators with charge comparison and using a CAMAC-microcomputer dataacquisition system is described. The total charge and multi-channel partial charges fordifferent time segments of pulses from liquid scintillator samples of NE213 or BC519radiated by 241Am-Be or 252Cf neutron sources are measured. The dependences of n,seperation in scintillators on delay time and energy distribution are given from off-linedata analysis. The energy distribution of neutrons or γ-ray and pulse shapes for fastand slow components of scintillators can be measured using such a n, γ discriminationmethod.
出处
《高能物理与核物理》
EI
CSCD
北大核心
1999年第7期616-621,共6页
High Energy Physics and Nuclear Physics
关键词
电荷比较法
液体闪烁体
n
γ分辨
脉冲形状
charge comparison, liquid scintillator, n,γ separation, pulse shape
