Development of the multi-purpose gamma-ray detection system consisting of a double-sided silicon strip detector and a 25-segmented germanium detector

摘要

We developed a position-sensitive gamma-ray detection system consisting of a double-sided silicon strip detector (DSSD) and a 25-segmented germanium detector (25-SEGD). Two major applications of the system are gamma-ray imaging (Compton camera) and linear polarization measurement for gamma rays emitted from oriented nuclei. Customized electronics were developed in order to handle multi-channel signals of both the DSSD and the 25-SEGD. Images for a Ba-133-based compound source in a square shape with areal dimensions of 1.5 x 1.5 mm(2) are presented. Comparison between experimental images and a Monte Carlo simulation yielded the overall imaging resolution within I cm for the present system.