Design and initial tests of the Tracker-converter of the Gamma-ray Large Area Space Telescope

被引：46

作者：

Atwood, W. B. ^{[1
]}

Bagagli, R. ^{[2
]}

Baldini, L. ^{[2
]}

Bellazzini, R. ^{[2
]}

Barbiellini, G. ^{[3
]}

Belli, F. ^{[4
]}

Borden, T. ^{[5
]}

Brez, A. ^{[2
]}

Brigida, M.

Caliandro, G. A. ^{[6
]}

Cecchi, C. ^{[7
]}

Cohen-Tanugi, J. ^{[5
]}

De Angelis, A. ^{[3
,8
]}

Drell, P. ^{[5
]}

Favuzzi, C. ^{[6
]}

Fukazawa, Y. ^{[9
]}

Fusco, P. ^{[6
]}

Gargano, F.

Germani, S. ^{[7
]}

Giannitrapani, R. ^{[3
,8
]}

Giglietto, N. ^{[6
]}

Giordano, F. ^{[6
]}

Himel, T. ^{[5
]}

Hirayama, M. ^{[10
,11
]}

Johnson, R. P. ^{[1
]}

Katagiri, H. ^{[9
]}

Kataoka, J. ^{[12
]}

Kawai, N. ^{[12
]}

Kroeger, W. ^{[5
]}

Kuss, M. ^{[2
]}

Latronico, L. ^{[2
]}

Longo, F. ^{[3
]}

Loparco, F. ^{[6
]}

Lubrano, P. ^{[7
]}

Massai, M. M. ^{[2
]}

Mazziotta, M. N. ^{[6
]}

Minuti, M. ^{[2
]}

Mizuno, T. ^{[9
]}

Morselli, A. ^{[4
]}

Nelson, D. ^{[5
]}

Nordby, M. ^{[5
]}

Ohsugi, T. ^{[9
]}

Omodei, N.

Ozaki, M. ^{[13
]}

Pepe, M. ^{[7
]}

Raino, S. ^{[6
]}

Rando, R. ^{[14
]}

Razzano, M. ^{[2
]}

Rich, D. ^{[5
]}

Sadrozinski, H. F. -W. ^{[1
]}

机构：

[1] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA

[2] Univ Pisa, Inst Nazl Fis Nucl, Dipartimento Fis, I-56127 Pisa, Italy

[3] Ist Nazl Fis Nucl, Sez Trieste, I-34012 Trieste, Italy

[4] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy

[5] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA

[6] Univ Bari, Ist Nazl Fis Nucl, Dipartimento Fis, I-70126 Bari, Italy

[7] Univ Perugia, Ist Nazl Fis Nucl, Dipartimento Fis, I-06123 Perugia, Italy

[8] Univ Udine, I-33100 Udine, Italy

[9] Hiroshima Univ, Higashihiroshima 7398526, Japan

[10] NASA, Goddard Space Flight Ctr, CRESST, Astroparticle Phys Lab, Greenbelt, MD 20771 USA

[11] Univ Maryland, Dept Phys, Baltimore, MD 21250 USA

[12] Tokyo Inst Technol, Tokyo 1528551, Japan

[13] ISAS, JAX, Kanagawa 2298510, Japan

[14] Univ Padua, Ist Nazl Fis Nucl, Dipartimento Fis, I-35131 Padua, Italy

[15] Scuola Normale Super Pisa, I-56126 Pisa, Italy

来源：

ASTROPARTICLE PHYSICS | 2007年 / 28卷 / 4-5期

基金：

美国国家航空航天局;

关键词：

gamma-ray; telescope; tracking;

D O I：

10.1016/j.astropartphys.2007.08.010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Tracker subsystem of the Large Area Telescope (LAT) science instrument of the Gamma-ray Large Area Space Telescope (GLAST) mission has been completed and tested. It is the central detector subsystem of the LAT and serves both to convert an incident gamma-ray into an electron-positron pair and to track the pair in order to measure the gamma-ray direction. It also provides the principal trigger for the LAT. The Tracker uses silicon strip detectors, read out by custom electronics, to detect charged particles. The detectors and electronics are packaged, along with tungsten converter foils, in 16 modular, high-precision carbon-composite structures. It is the largest silicon-strip detector system ever built for launch into space, and its aggressive design emphasizes very low power consumption, passive cooling, low noise, high efficiency, minimal dead area, and a structure that is highly transparent to charged particles. The test program has demonstrated that the system meets or surpasses all of its performance specifications as well as environmental requirements. It is now installed in the completed LAT, which is being prepared for launch in early 2008. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：422 / 434

页数：13

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