MeV gamma-ray Compton camera using a gaseous electron tracker for background-suppressed observation

被引：2

作者：

Takada, A. ^{[1
]}

Tanimori, T. ^{[1
]}

Kubo, H. ^{[1
]}

Parker, J. D. ^{[1
]}

Mizumoto, T. ^{[1
]}

Mizumura, Y. ^{[1
]}

Sawano, T. ^{[1
]}

Nakamura, K. ^{[1
]}

Matsuoka, Y. ^{[1
]}

Komura, S. ^{[1
]}

Nakamura, S. ^{[1
]}

Oda, M. ^{[1
]}

Miuchi, K. ^{[2
]}

Kurosawa, S. ^{[3
]}

机构：

[1] Kyoto Univ, Kyoto, Kyoto, Japan

[2] Kobe Univ, Kobe, Hyogo 657, Japan

[3] Tohoku Univ, Sendai, Miyagi 980, Japan

来源：

SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY | 2014年 / 9144卷

关键词：

Compton telescope; MeV gamma-ray astronomy; balloon experiment; IMAGING DETECTOR; SOURCE CATALOG; EMISSION;

D O I：

10.1117/12.2055627

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

As a next generation MeV gamma-ray telescope, we develop an electron-tracking Compton camera (ETCC) that consists of a gaseous electron tracker surrounded by pixel scintillator arrays. The tracks of the Compton-recoil electron measured by the tracker restrict the incident gamma-ray direction to an arc region on the sky and reject background by using the energy loss rate dE/dx and a Compton-kinematics test. In 2013, we constructed, for a balloon experiment, a 30-cm-cubic ETCC with an effective area of similar to 1 cm(2) for detecting sub-MeV gamma rays (5 sigma detection of the Crab Nebula for 4 h). In future work, we will extend this ETCC to an effective area of similar to 10 cm(2). In the present paper, we report the performance of the current ETCC.

引用

页数：11

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