Performance of GRB monitor with Astro-E2 Hard X-ray Detector (HXD-II)

被引:1
|
作者
Hong, S [1 ]
Yamaoka, K
Terada, Y
Ohno, A
Tsutsui, A
Endo, Y
Kotoku, J
Okada, Y
Mori, A
Fukazawa, Y
Kamae, T
Kokubun, M
Makishima, K
Murakami, T
Nakazawa, K
Nomachi, M
Tashiro, M
Takahashi, I
Takahashi, T
Yonetoku, D
Watanabe, S
机构
[1] Saitama Univ, Dept Phys, Urawa, Saitama 338, Japan
[2] Inst Phys & Chem Res, Wako, Saitama, Japan
[3] Aoyama Gakuin Univ, Dept Math & Phys, Tokyo 150, Japan
[4] Hiroshima Univ, Dept Phys Sci, Hiroshima 730, Japan
[5] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan
[6] Univ Tokyo, Dept Phys, Tokyo 113, Japan
[7] Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA
[8] Kanazawa Univ, Dept Phys, Kanazawa, Ishikawa 920, Japan
[9] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Tokyo, Japan
[10] Osaka Univ, Nucl Phys Lab, Suita, Osaka 565, Japan
关键词
D O I
10.1393/ncc/i2005-10164-7
中图分类号
学科分类号
摘要
The Hard X-ray Detector (HXD-II) is one of the three instruments onboard the Astro-E2 satellite scheduled for launch in 2005. The HXD-II consists of 16 main counters (Well units), surrounded by 20 active shield counters (Anti units). The Anti units have a large geometrical area of similar to 800 cm(2) with an uncollimated field of view covering similar to 2 pi steradian. Utilizing 2.6 cm thick BGO crystals: they realize a large effective area of 400 cm(2) for 1 MeV photons. In the energy range of 300-5000 keV, the expected effective area is significantly larger than those of other gamma-ray burst instruments, such as CGRO/BATSE, HETE-2/FREGATE, and GLAST/GBM. Therefore. the Anti units act as a Wideband All-sky, Monitor (WAM) for gamma-ray bursts in the energy range of 50-5000 keV.
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页码:821 / 824
页数:4
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