Title :
Characterization of a New ASIC Readout for Pixel CZT Detectors for Hard X-Ray Astronomy
Author :
Ventura, Giulio ; Caroli, Ezio ; Auricchio, Natalia ; Bertuccio, Giuseppe ; Caccia, Stefano ; Donati, Ariano ; Sordo, Stefano Del ; Schiavone, Filomena
Author_Institution :
Inst. of Space Astrophys. & Cosmic Phys., Italian Nat. Inst. of Astrophys., Bologna
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
The results of the laboratory measurements performed on an X-Ray detection system based on a 16times16 pixel CZT array from eV products and a custom readout ASIC are presented. In particular, the performance of a new low power and low noise 8-channel ASIC were investigated in order to characterize the operative features of the front-end active device coupled with a low dark current 1 mm thick CZT detector with an anode segmented in pixel of 0.5 mm in side. The tests carried out were limited to the energy range 10-100 keV, since the ASIC chip gain was adjusted to operate with CZT pixel detector suitable as multilayer telescope focal planes. Channel-to-channel ASIC non-uniformities were investigated as well as the spectroscopic performance of the detection equipment.
Keywords :
X-ray astronomy; X-ray detection; anodes; application specific integrated circuits; readout electronics; semiconductor counters; 10 to 100 keV; ASIC chip gain; ASIC readout; anode segmentation; channel-to-channel ASIC nonuniformity; front-end active device; hard X-ray astronomy; low dark current detector; multilayer telescope focal plane; pixel CZT detector; Active noise reduction; Anodes; Application specific integrated circuits; Astronomy; Dark current; Extraterrestrial measurements; Laboratories; Performance evaluation; X-ray detection; X-ray detectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.353786
