摘要: 近年来，许多国家开展了用非晶硅（ａ－Ｓｉ：Ｈ）作为探测器材料的研究，并取得了明显的进展．本文简要介绍这种探测器的原理、结构、现状及其应用前景． Recently, the investigation to make radiation detectors with amorphous Silicon(a-Si:H) were reported in many countries of the world. In this paper, operation principles,structures, current status and prospect of applications in various fields of science on these detectors were reviewed briefly.