Caliste 64, a new CdTe micro-camera for hard X-ray spectro-imaging

被引：15

作者：

Meuris, A. ^{[1
]}

Limousin, O. ^{[1
]}

Lugiez, F. ^{[2
]}

Gevin, O. ^{[2
]}

Blondel, C. ^{[1
]}

Pinsard, F. ^{[1
]}

Vassal, M. C. ^{[3
]}

Soufflet, F. ^{[3
]}

Le Mer, I. ^{[1
]}

机构：

[1] CEA, Serv Astrophys, F-91191 Gif Sur Yvette, France

[2] CEA, Serv Elect Detecteurs & Informat, F-91191 Gif Sur Yvette, France

[3] 3D Plus, F-78532 Buc, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 610卷 / 01期

关键词：

CdTe; X-rays; Spectroscopy; Hybridization; ASIC; Front-end electronics;

D O I：

10.1016/j.nima.2009.05.071

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In the frame of the Simbol-X mission of hard X-ray astrophysics, a prototype of micro-camera with 64 pixels called Caliste 64 has been designed and several samples have been tested. The device integrates ultra-low-noise 1DeF-X V1.1 ASICs from CEA and a 1 cm(2) Al Schottky CdTe detector from Acrorad because of its high uniformity and spectroscopic performance. The process of hybridization, mastered by the 3D Plus company, respects space applications standards. The camera is a spectro-imager with time-tagging capability. Each photon interacting in the semiconductor is tagged with a time. a position and an energy. Time resolution is better than 100 ns rms for energy deposits greater than 20 keV, taking into account electronic noise and technological dispersal of the front-end electronics. The spectrum summed across the 64 pixels results in an energy resolution of 664 eV fwhm at 13.94 keV and 842 eV fwhm at 59.54 keV, when the detector is cooled down to -10 degrees C and biased at -500V. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：154 / 157

页数：4

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