Developments of semiconductor imaging detectors for high precision gamma-ray imaging observation

我们已经开发出具有良好位置分辨率和高能量分辨率的半导体成像探测器，用于高灵敏度地观测宇宙中的伽马射线。我们实现并建立了位置分辨率为几百μm、能量分辨率为1.2keV、成像面积为3.2 cm×3.2 cm的碲化镉双面条带探测器。此外，我们还将其应用于紧凑型编码掩模相机和Si/CdTe半导体康普顿相机中，并对其伽马射线成像性能进行了评价。

We have developed CdTe semiconductor imaging detectors with fine position resolution and high energy resolutions for high sensitive observations of gamma-ray lines in the universe. We have achieved and established the CdTe double-sided strip detector which has a few hundredμm position resolution, 1.2 keV energy resolution, and 3.2cm x 3.2 cm large imaging area. Moreover, we applied the CdTe double-sided strip detectors to the compact coded mask camera and the Si/CdTe semiconductor Compton camera, and evaluated the performance of the gamma-ray imaging.