T he density of surface trap levels can be lowered by annealing,so the leakage cur rent of CdSe detectors can be decreased and the energy resolution can be improve d too.

• 对探测器进行适当的热处理 ；可以降低表面能级密度 ；从而抑制电子注入 ；降低探测器的漏电流 ；改善探测器的能量分辨率 .