Spectroscopy and polarimetry capabilities of the INTEGRAL imager: Monte Carlo simulation results

摘要

A three-dimensional position sensitive imaging detector has been proposed for the prospective ESA/NASA gamma-ray satellite, INTEGRAL. The instrument is based on two layers of bar shaped CsI(T1) crystals viewed by photodiodes. The GEANT3 Monte Carlo simulation package has been used to assess the spectroscopic and enhanced imaging performance of this detector and an original routine has been written to assess its capabilities as a Compton polarimeter. A description of the algorithm of this routine is given with the results of both GEANT3 and the polarization simulations.