HgCdTe红外探测器空间辐照实验技术研究

应用于空间飞行器上的HgCdTe红外探测器,会受到各种空间辐射的影响,从而导致性能降低。为了保证探测器正常的在轨工作,研究空间辐射对于探测器性能的影响有着重要意义。本文首先介绍现阶段对空间辐射环境的认识;其次研究总剂量辐射对红外HgCdTe探测器在轨工作性能的影响,提出了评价探测器成像性能的几项指标,并考察了辐照前后指标的变化;最后给出了结论。

Study of Space Radiation Experimental Technique of HgCdTe Infrared Detector

The HgCdTe infrared detector used on a spacecraft can be affected by all kinds of space radiation.Thus,its performance would be degraded.In order to ensure the detector to operate in orbit normally,it is very significant to study the effect of the space radiation on the performance of the detector.In this paper,the current knowledge of space radiation environment is presented first and the effect of the total dose radiation on the performance of the detector in orbit is discussed secondly.Some parameters for evaluating the imaging performance of the detector are proposed and the variations of these parameters before and after the detector is iradiated are analyzed.Finally,a conclusion is given.