Development of the GRB Monitor for the CALET experiment

Kazutaka Yamaoka; Atsumasa Yoshida; Taro Kotani; Satoshi Nakahira; Kei Suzuki; Takuya Ohyama; Takaaki Doshida; Tohru Kojima; Takayuki Shiraki; Tomoki Kataoka; Yujin E. Nakagawa; Hiroshi Tomida; Shoji Torii

doi:10.1063/1.3155979

Development of the GRB Monitor for the CALET experiment

Kazutaka Yamaoka^*, Atsumasa Yoshida, Taro Kotani, Satoshi Nakahira, Kei Suzuki, Takuya Ohyama, Takaaki Doshida, Tohru Kojima, Takayuki Shiraki, Tomoki Kataoka, Yujin E. Nakagawa, Hiroshi Tomida, Shoji Torii

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

The CALET mission is a Japanese-led effort involving candidate experiments on the International Space Station, planned for launch in 2013. The CALET main detector is a pair conversion telescope which is dedicated to observing high energy electrons and gamma-rays in the GeV-TeV range. CALET can observe gamma-ray bursts over an unprecedented 9 decade energy range from ∼keV to ∼TeV with a combination of a gamma-ray burst monitor (GBM) with low energy coverage. GBM is now designed as multiple scintillators made of BGO and LaBr₃ (Ce) scintillators. The prototype LaBr₃(Ce) crystal with 3 inch diameter and 0.5 inch thickness displays a very good performance: 2.9±0.1 % FWHM energy resolution at 662 keV and 4 keV lower energy threshold. Furthermore, degradations in performance by the anticipated proton irradiation in the orbit are not significant. Results on proton-induced background are also presented.

Original language	English
Title of host publication	AIP Conference Proceedings
Pages	88-90
Number of pages	3
Volume	1133
DOIs	https://doi.org/10.1063/1.3155979
Publication status	Published - 2009
Event	6th Huntsville Symposium on Gamma-Ray Bursts - Huntsville, AL Duration: 2008 Oct 20 → 2008 Oct 23

Other

Other	6th Huntsville Symposium on Gamma-Ray Bursts
City	Huntsville, AL
Period	08/10/20 → 08/10/23

Keywords

γ-ray bursts
γ-ray sources
CALET
X- and γ-ray telescopes and instrumentation

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.3155979

Cite this

Yamaoka, K, Yoshida, A, Kotani, T, Nakahira, S, Suzuki, K, Ohyama, T, Doshida, T, Kojima, T, Shiraki, T, Kataoka, T, Nakagawa, YE, Tomida, H & Torii, S 2009, Development of the GRB Monitor for the CALET experiment. in AIP Conference Proceedings. vol. 1133, pp. 88-90, 6th Huntsville Symposium on Gamma-Ray Bursts, Huntsville, AL, 08/10/20. https://doi.org/10.1063/1.3155979

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abstract = "The CALET mission is a Japanese-led effort involving candidate experiments on the International Space Station, planned for launch in 2013. The CALET main detector is a pair conversion telescope which is dedicated to observing high energy electrons and gamma-rays in the GeV-TeV range. CALET can observe gamma-ray bursts over an unprecedented 9 decade energy range from ∼keV to ∼TeV with a combination of a gamma-ray burst monitor (GBM) with low energy coverage. GBM is now designed as multiple scintillators made of BGO and LaBr3 (Ce) scintillators. The prototype LaBr3(Ce) crystal with 3 inch diameter and 0.5 inch thickness displays a very good performance: 2.9±0.1 % FWHM energy resolution at 662 keV and 4 keV lower energy threshold. Furthermore, degradations in performance by the anticipated proton irradiation in the orbit are not significant. Results on proton-induced background are also presented.",

keywords = "γ-ray bursts, γ-ray sources, CALET, X- and γ-ray telescopes and instrumentation",

author = "Kazutaka Yamaoka and Atsumasa Yoshida and Taro Kotani and Satoshi Nakahira and Kei Suzuki and Takuya Ohyama and Takaaki Doshida and Tohru Kojima and Takayuki Shiraki and Tomoki Kataoka and Nakagawa, {Yujin E.} and Hiroshi Tomida and Shoji Torii",

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doi = "10.1063/1.3155979",

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AU - Yamaoka, Kazutaka

AU - Yoshida, Atsumasa

AU - Kotani, Taro

AU - Nakahira, Satoshi

AU - Suzuki, Kei

AU - Ohyama, Takuya

AU - Doshida, Takaaki

AU - Kojima, Tohru

AU - Shiraki, Takayuki

AU - Kataoka, Tomoki

AU - Nakagawa, Yujin E.

AU - Tomida, Hiroshi

AU - Torii, Shoji

PY - 2009

Y1 - 2009

N2 - The CALET mission is a Japanese-led effort involving candidate experiments on the International Space Station, planned for launch in 2013. The CALET main detector is a pair conversion telescope which is dedicated to observing high energy electrons and gamma-rays in the GeV-TeV range. CALET can observe gamma-ray bursts over an unprecedented 9 decade energy range from ∼keV to ∼TeV with a combination of a gamma-ray burst monitor (GBM) with low energy coverage. GBM is now designed as multiple scintillators made of BGO and LaBr3 (Ce) scintillators. The prototype LaBr3(Ce) crystal with 3 inch diameter and 0.5 inch thickness displays a very good performance: 2.9±0.1 % FWHM energy resolution at 662 keV and 4 keV lower energy threshold. Furthermore, degradations in performance by the anticipated proton irradiation in the orbit are not significant. Results on proton-induced background are also presented.

AB - The CALET mission is a Japanese-led effort involving candidate experiments on the International Space Station, planned for launch in 2013. The CALET main detector is a pair conversion telescope which is dedicated to observing high energy electrons and gamma-rays in the GeV-TeV range. CALET can observe gamma-ray bursts over an unprecedented 9 decade energy range from ∼keV to ∼TeV with a combination of a gamma-ray burst monitor (GBM) with low energy coverage. GBM is now designed as multiple scintillators made of BGO and LaBr3 (Ce) scintillators. The prototype LaBr3(Ce) crystal with 3 inch diameter and 0.5 inch thickness displays a very good performance: 2.9±0.1 % FWHM energy resolution at 662 keV and 4 keV lower energy threshold. Furthermore, degradations in performance by the anticipated proton irradiation in the orbit are not significant. Results on proton-induced background are also presented.

KW - γ-ray bursts

KW - γ-ray sources

KW - CALET

KW - X- and γ-ray telescopes and instrumentation

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Development of the GRB Monitor for the CALET experiment

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