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Proceedings Paper

Monte Carlo simulation study of in-orbit background for the soft gamma-ray detector on-board ASTRO-H
Author(s): T. Mizuno; K. Hiragi; Y. Fukazawa; Y. Umeki; H. Odaka; S. Watanabe; M. Kokubun; T. Takahashi; K. Nakajima; K. Nakazawa; K. Makishima; S. Nakahira; Y. Terada; H. Tajima
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Paper Abstract

The Soft Gamma-ray Detector onboard the ASTRO-H satellite, scheduled for launch in 2014, is a Si/CdTe Compton telescope surrounded by a thick BGO active shield. The SGD covers the energy range from 40 to 600 keV and studies non-thermal phenomena in the universe with high sensitivity. For the success of the SGD mission, careful examination of the expected performance, particularly the instrumental background in orbit, and optimization of the detector configuration are essential. We are developing a Geant4-based Monte Carlo simulation framework on the ANL++ platform, employing the MGGPOD software suite to predict the radioactivation in orbit. A detailed validation of the simulator through the comparison with literature and the beam test data is summarized. Our system will be integrated into the ASTRO-H simulation framework.

Paper Details

Date Published: 29 July 2010
PDF: 8 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77323C (29 July 2010); doi: 10.1117/12.856753
Show Author Affiliations
T. Mizuno, Hirohsima Univ. (Japan)
K. Hiragi, Hirohsima Univ. (Japan)
Y. Fukazawa, Hirohsima Univ. (Japan)
Y. Umeki, Hirohsima Univ. (Japan)
H. Odaka, Japan Aerospace Exploration Agency (Japan)
S. Watanabe, Japan Aerospace Exploration Agency (Japan)
M. Kokubun, Japan Aerospace Exploration Agency (Japan)
T. Takahashi, Japan Aerospace Exploration Agency (Japan)
K. Nakajima, The Univ. of Tokyo (Japan)
K. Nakazawa, The Univ. of Tokyo (Japan)
K. Makishima, The Univ. of Tokyo (Japan)
S. Nakahira, Aoyama Gakuin Univ. (Japan)
Y. Terada, Saitama Univ. (Japan)
H. Tajima, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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