The AGILE silicon tracker: testbeam results of the prototype silicon detector

被引:80
作者
Barbiellini, G
Fedel, G
Liello, F
Longo, F
Pontoni, C
Prest, M
Tavani, M
Vallazza, E
机构
[1] CIFS, I-34012 Trieste, Italy
[2] Ist Nazl Fis Nucl, Sez Trieste, I-34012 Trieste, Italy
[3] Univ Trieste, I-34127 Trieste, Italy
[4] Univ Ferrara, I-44100 Ferrara, Italy
[5] Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy
[6] CNR, Ist Fis Cosm, I-20133 Milan, Italy
关键词
satellite; silicon detector; self triggering; floating strip; gamma-ray detector;
D O I
10.1016/S0168-9002(02)01062-8
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
AGILE (Light Imager for Gamma-ray Astrophysics) is a small scientific satellite for the detection of cosmic gamma-ray sources in the energy range 30 MeV-50 GeV with a very large field of view (1/4 of the sky). It is planned to be operational in the years 2003-2006, a period in which no other gamma-ray mission in the same energy range is foreseen. The heart of the AGILE scientific instrument is a silicon-tungsten tracker made of 14 planes of single sided silicon detectors for a total of 43 000 readout channels. Each detector has a dimension of 9 5 x 9 5 cm(2) and a thickness of 410 mum. We present here a detailed description of the performance of the detector prototype during a testbeam period at the CERN PS in May 2000. The Tracker performance is described in terms of position resolution and signal-to-noise ratio for on and off-axis incident charged particles. The measured 40 pm resolution for a large range of incident angles will provide an excellent angular resolution for cosmic gamma-ray imaging. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码:146 / 158
页数:13
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