An X-ray imager based on silicon microstrip detector and coded mask

被引:9
|
作者
Del Monte, E.
Costa, E.
Di Persio, G.
Donnarumma, I.
Evangelista, Y.
Feroci, M.
Frutti, M.
Lapshov, I.
Lazzarotto, F.
Mastropietro, M.
Morelli, E.
Pacciani, L.
Porrovecchio, G.
Rapisarda, M.
Rubini, A.
Soffitta, P.
Tavani, M.
Argan, A.
机构
[1] INAF IASF Roma, I-00133 Rome, Italy
[2] ISC CNR, I-00016 Monterotondo, RM, Italy
[3] INAF IASF Bologna, I-40129 Bologna, Italy
[4] ENEA UTS Fus Tecnol, I-00044 Frascati, RM, Italy
关键词
high-energy astrophysics; X-rays; silicon microstrip detectors; coded aperture imaging;
D O I
10.1016/j.nima.2007.01.150
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
SuperAGILE is the X-ray monitor of AGILE, a satellite mission for gamma-ray astronomy, and it is the first X-ray imaging instrument based on the technology of the silicon microstrip detectors combined with a coded aperture imaging technique. The SuperAGILE detection plane is composed of four 1-D silicon microstrip detector modules, mechanically coupled to tungsten coded mask units. The detector strips are separately and individually connected to the input analogue channels of the front-end electronics, composed of low-noise and low-power consumption VLSI ASIC chips. SuperAGILE can produce 1-D images with 6 arcmin angular resolution and similar to 2-3 arcmin localisation capability, for intense sources, in a field of view composed of two orthogonal areas of 107 degrees x 68 degrees. The time resolution is 2 mu s, the overall dead time is similar to 5 mu s and the electronic noise is similar to 7.5 keV full-width at half-maximum. The resulting instrument is very compact (40 x 40 x 14 cm(3)), light (10 kg) and has low power consumption (12 W). AGILE is a mission of the Agenzia Spaziale Italiana and its launch is planned in 2007 in a low equatorial Earth orbit. In this contribution we present SuperAGILE and discuss its performance and scientific objectives. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:191 / 193
页数:3
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