Performance assessment study of the balloon-borne astronomical soft gamma-ray polarimeter PoGOLite

被引:0
|
作者
Arimoto, M. [1 ]
Kanai, Y. [1 ]
Ueno, M. [1 ]
Kataoka, J. [1 ]
Kawai, N. [1 ]
Tanaka, T. [2 ]
Yamamoto, K. [2 ]
Takahashi, H. [2 ]
Mizuno, T. [2 ]
Fukazawa, Y.
Axelsson, M. [3 ]
Kiss, M. [3 ]
Bettolo, C. Marini [3 ]
Carlson, P. [3 ]
Klamra, W. [3 ]
Pearce, M. [3 ]
Chen, P. [4 ]
Craig, B. [4 ]
Kamae, T. [4 ]
Madejski, G. [4 ]
Ng, J. S. T. [4 ]
Rogers, R. [4 ]
Tajima, H. [4 ]
Thurston, T. S. [4 ]
Saito, Y. [5 ]
Takahashi, T. [5 ]
Gunji, S. [6 ]
Bjornsson, Ca. [7 ]
Larsson, S. [7 ]
Ryde, F. [7 ]
Bogaert, G. [8 ]
Varner, G. [9 ]
机构
[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan
[2] Hiroshima Univ, Higashihiroshima 724, Japan
[3] Royal Inst Technol, Stockholm, Sweden
[4] Stanford Linear Accelerator Ctr, Menlo Pk, CA USA
[5] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa, Japan
[6] Yamagata Univ, Yamagata 990, Japan
[7] Stockholm Univ, S-10691 Stockholm, Sweden
[8] Ecole Polytech, Palaiseau, France
[9] Univ Hawaii, Honolulu, HI 96822 USA
来源
基金
日本学术振兴会;
关键词
polarization; gamma-ray; X-ray; balloon experiment;
D O I
10.1016/j.physe.2007.06.051
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Measurements of polarization play a crucial role in the understanding of the dominant emission mechanism of astronomical sources. Polarized Gamma-ray Observer-Light version (PoGOLite) is a balloon-borne astronomical soft gamma-ray polarimeter at the 25-80 keV band. The PoGOLite detector consists of a hexagonal close-packed array of 217 Phoswich detector cells (PDCs) and side anti-coincidence shields (SASs) made of BGO crystals surrounding PDCs. Each PDC consists of a slow hollow scintillator, a fast scintillator and a BGO crystal that connects to a photomultiplier tube at the end. To examine the PoGOLite's capability and estimate the performance, we conducted experiments with the PDC using radioisotope 241Am. In addition, we compared this result with performance expected by Monte Carlo simulation with Geant4. As a result, we found that the actual PDC has the capability to detect a 100 m Crab source until 80 keV. © 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:438 / 441
页数:4
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