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

Hong, S. and Yamaoka, K. and Terada, Y. and Ohno, M. and Tsutsui, A. and Endo, Y. and Kotoku, J. and Okada, Y. and Mori, M. and Fukazawa, Y. and Kamae, T. and Kokubun, M. and Makishima, K. and Murakami, T. and Nakazawa, K. and Nomachi, M. and Tashiro, M. and Takahashi, I. and Takahashi, T. and Yonetoku, D. and Watanabe, S. (2005) Performance of GRB monitor with Astro-E2 Hard X-ray Detector (HXD-II). Il nuovo cimento C, 28 (4\5). pp. 821-824. ISSN 1826-9885

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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 ∼ 800 cm2 with an uncollimated field of view covering ∼ 2π steradian. Utilizing 2.6 cm thick BGO crystals, they realize a large effective area of 400 cm2 for 1MeV 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.

Item Type: Article
Additional Information: Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004.
Uncontrolled Keywords: γ-ray sources; γ-ray bursts ; X- and γ-ray telescopes and instrumentation
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 18 Mar 2020 11:11
Last Modified: 18 Mar 2020 11:11

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