Monte Carlo Polarimetric Efficiency Simulations for a Single Monolithic CdTe Thick Matrix
Polarimetric measurements for hard X- and soft gamma-rays are still quite unexplored in astrophysical source observations. In order to improve the study of these sources through Compton polarimetry, detectors should have a good polarimetric efficiency and also satisfy the demands of the typical exigent detection environments for this kind of missions. Herein we present a simple concept for such systems, since we propose the use of a single thick (∼10 mm) monolithic matrix of CdTe of 32×32 pixels, with an active area of about 40 cm2. In order to predict the best configuration and dimension of detector pixels defined inside the CdTe monolithic piece, a Monte Carlo code based on GEANT4 library modules was developed. Efficiency and polarimetric modulation factor results as a function of energy and detector thickness, are presented and discussed. Q factor of the order of 0.3 has been found up to several hundreds of keV.
KeywordsCompton Scattering Detector Plane Double Event Monte Carlo Code Detector Thickness
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- 3.E. Caroli, J.B. Stephen, W. Dusi, A.J. Bird, A.J. Dean, G. Bertuccio, M. Sampietro, W. Yu, C. Zhang, R.M. Curado da Silva, P. Siffert, V. Reglern: ‘The CIPHER Telescope for Hard X and Soft Gamma-Ray Polarimetry’. Accepted to be published on the Proceeding Series of American Institute of PhysicsGoogle Scholar