Gamma-ray Polarimetry with Compton Telescope

Details Gamma-ray Polarimetry with Compton Telescope Gamma-ray Polarimetry with Compton Telescope

2004-07-06

arxiv.org/abs/astro-ph/0407114v1

Astronomy and Astrophysics

Astrophysics

12 pages, 11 figures, submitted to SPIE conference proceedings vol 5488, "UV-Gamma Ray Space Telescope Systems," Glasgow UK, 6

Scientific paper

10.1117/12.552487

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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