Development of a Monte Carlo Simulator for the Astro-E2 hard X-ray detector (HXD-II)

The Hard X-ray Detector (HXD-II) is one of the scientific payloads on board the fifth Japanese cosmic X-ray satellite Astro-E2 , scheduled for launch in 2005. The HXD-II is designed to cover a wide energy range of 10-600 keV with a high sensitivity of about 10/sup -5/ cnt/s/cm/sup 2//keV. In order t...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2005-08, Vol.52 (4), p.902-909
Main Authors: Terada, Y., Watanabe, S., Ohno, M., Suzuki, M., Itoh, T., Takahashi, I., Sato, G., Murashima, M., Kawano, N., Uchiyama, Y., Kubo, S., Takahashi, T., Tashiro, M., Kokubun, M., Makishima, K., Kamae, T., Murakami, T., Nomachi, M., Fukazawa, Y., Yamaoka, K., Nakazawa, K., Yonetoku, D.
Format: Article
Language:English
Subjects:
Astronomical satellites
Counting circuits
Gamma ray detection
Gamma ray detectors
gamma-ray spectroscopy detectors
Monte Carlo
Monte Carlo methods
Payloads
Physics
Satellite broadcasting
simulation
Software packages
Spectroscopy
X-ray detectors
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Summary:The Hard X-ray Detector (HXD-II) is one of the scientific payloads on board the fifth Japanese cosmic X-ray satellite Astro-E2 , scheduled for launch in 2005. The HXD-II is designed to cover a wide energy range of 10-600 keV with a high sensitivity of about 10/sup -5/ cnt/s/cm/sup 2//keV. In order to derive the energy response of the sensor and to estimate the background, a Monte Carlo simulator based on the Geant4 toolkit is currently being developed. This paper describes the design concept of the HXD-II software package, including the analysis tools and the Monte Carlo simulator, and its verification through a comparison with actual data taken by pre-flight radio-isotope irradiation experiments, together with calculated outputs that can demonstrate the in-orbit performance of the HXD-II.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2005.852681