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Monte Carlo Polarimetric Efficiency Simulations for a Single Monolithic CdTe Thick Matrix

  • R. M. Curado da Silva
  • M. Hage-Ali
  • E. Caroli
  • P. Siffert
  • J. B. Stephen
Conference paper

Abstract

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.

Keywords

Compton Scattering Detector Plane Double Event Monte Carlo Code Detector Thickness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • R. M. Curado da Silva
    • 1
  • M. Hage-Ali
    • 1
  • E. Caroli
    • 2
  • P. Siffert
    • 1
  • J. B. Stephen
    • 2
  1. 1.Laboratoire PHASE, CNRSStrasbourgFrance
  2. 2.Instituto TESRE/CNRBolognaItaly

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