Gamma-ray polarimetry

An astrophysics application of a low-noise Double-sided Silicon Strip Detector (DSSD) is described. A Semiconductor Multiple-Compton Telescope (SMCT) is being developed to explore the γ-ray universe in the 0.1–20 MeV energy range. Excellent energy resolution and polarization sensitivity are key features of the SMCT. We have developed prototype modules for a low-noise DSSD system that achieved an energy resolution of 1.3 keV (FWHM) for 122 keV at 0°C. Results of a gamma-ray imaging test are also presented.