Gamma-ray Polarimetry with Compton Telescope
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.
Cite
@article{arxiv.astro-ph/0407114,
title = {Gamma-ray Polarimetry with Compton Telescope},
author = {Hiroyasu Tajima and Grzegorz Madejski and Takefumi Mitani and Takaaki Tanaka and Hidehito Nakamura and Kazuhiro Nakazawa and Tadayuki Takahashi and Yasushi Fukazawa and Tuneyoshi Kamae and Motohide Kokubun and Daniel Marlow and Masaharu Nomachi and Eduardo do Couto e Silva},
journal= {arXiv preprint arXiv:astro-ph/0407114},
year = {2009}
}
Comments
12 pages, 11 figures, submitted to SPIE conference proceedings vol 5488, "UV-Gamma Ray Space Telescope Systems," Glasgow UK, 6/21-6/24 2004