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在电磁量能器中，晶体闪烁光收集沿长度方向的均匀性对能量分辨率有相当的影响．利用蒙特卡洛（ＭＣ）方法对钨酸铅（ＰｂＷＯ４或ＰＷＯ）长晶体的光传导与光收集过程进行了模拟计算，着重讨论了晶体吸收长度，折射率等因素对光收集的影响．
In the electromagnetic energy gauge, the uniformity of the crystal scintillation light collection in the length direction has a considerable impact on the energy resolution. The light conduction and light collection process of long lead tungstate (PbWO4 or PWO) crystal were simulated by Monte Carlo method. The effects of crystal absorption length, refractive index and other factors on light collection were mainly discussed.