Transient response of stressed Ge:Ga detector for ASTRO-F Original Research Article

Two types of gallium-doped germanium detector arrays, stressed and unstressed ones, are onboard ASTRO-F, the next Japanese infrared astronomical satellite. Prior to measurements of such detector arrays, we investigated the transient properties of a single-element stressed gallium-doped germanium detector. In order to obtain calibration data for ASTRO-F, our measurements cover wide ranges of signal and background photon flux levels. The current status of our experiment is described in this paper.