Gamma-ray polarimetry with Compton Telescope

Hiroyasu Tajima; Grzegorz Madejski; Takefumi Mitani; Takaaki Tanaka; Hidehito Nakamura; Kazuhiro Nakazawa; Tadayuki Takahashi; Yasushi Fukazawa; Tuneyoshi Kamae; Motohide Kokubun; Daniel Marlow; Masaharu Nomachi; Eduardo do Couto e Silva

doi:10.1117/12.552487

11 October 2004 Gamma-ray polarimetry with Compton Telescope

Hiroyasu Tajima, Grzegorz Madejski, Takefumi Mitani, Takaaki Tanaka, Hidehito Nakamura, Kazuhiro Nakazawa, Tadayuki Takahashi, Yasushi Fukazawa, Tuneyoshi Kamae, Motohide Kokubun, Daniel Marlow, Masaharu Nomachi, Eduardo do Couto e Silva

Author Affiliations +

Proceedings Volume 5488, UV and Gamma-Ray Space Telescope Systems; (2004) https://doi.org/10.1117/12.552487
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Compton telescope is a promising technology to achieve very high sensitivity in the soft gamma-ray band (0.1-10 MeV) by utilizing Compton kinematics. Compton kinematics also enables polarization measurement which will open new windows to study gamma-ray production mechanism in the universe. CdTe and Si semiconductor technologies are key technologies to realize the Compton telescope in which their high energy resolution is crucial for high angular resolution and background rejection capability. We have assembled a prototype module using a double-sided silicon strip detector and CdTe pixel detectors. In this paper, we present expected polarization performance of a proposed mission (NeXT/SGD). We also report results from polarization measurements using polarized synchrotron light and validation of EGS4 MC simulation.

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Hiroyasu Tajima, Grzegorz Madejski, Takefumi Mitani, Takaaki Tanaka, Hidehito Nakamura, Kazuhiro Nakazawa, Tadayuki Takahashi, Yasushi Fukazawa, Tuneyoshi Kamae, Motohide Kokubun, Daniel Marlow, Masaharu Nomachi, and Eduardo do Couto e Silva "Gamma-ray polarimetry with Compton Telescope", Proc. SPIE 5488, UV and Gamma-Ray Space Telescope Systems, (11 October 2004); https://doi.org/10.1117/12.552487

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