【摘要】 测量了用Stockbager方法生长的纯CsI晶体的光学透射、X射线激发的发射谱、能谱特性和衰减时间特性．该晶体有二个闪烁分量，峰值位于310nm的发光分量是快分量（＜40ns），450um处的发光分量是慢分量（～2．4μs）．慢分量的发光强度不稳定，并受晶体中缺陷I-空位的影响较大．文中还给出快、慢发光强度比值91．8％．更多还原

【Abstract】 The optical transmission, X-ray excited emission, energy spectra and decay time characteristics were measured for pure CsI crystals grown by Stockbarger process. The results show thatthe crystals has two scintillation components: a fast component peaked at 310um with <40nsdecay time and a slow component at 450um with~2.4μs. The slow emission intensity is not stableand considerably thectcd by I- vacancy defects in the crystal. The intensity ratio of fast to slowcomponent obtAlNed is 91.8%.更多还原