DocumentCode
3343804
Title
Digital x-ray scanner based on monolithic line of semi-insulating GaAs radiation detectors
Author
Dubecky, F. ; Scepko, P. ; Zatko, B. ; Sekerka, V. ; Necas, V. ; Sekacova, M. ; Hudec, M. ; Perd´ochova, A. ; Bohacek, P.
fYear
2004
fDate
17-21 Oct. 2004
Firstpage
21
Lastpage
24
Abstract
In the present work developed X-ray digital portable scanner operating in "quantum" imaging mode with improved dynamic range in contrast of the observed X-ray images is demonstrated Detection unit is based on semi-insulating GaAs strip line detectors with pitch 0.25 mm and absorption length of strip 1.25 mm with detection efficiency over 60 % for detection of 60 keV photons at a bias of 200 V Readout electronics consists of 480 channels dc coupled with detectors. Scanned area has dimensions 12x15 cm2. Collected data are used for creation of X-ray "quantum" images of selected test objects using the developed imaging software.
Keywords
Gallium arsenide; Image storage; Optical imaging; Radiation detectors; Radiology; Spatial resolution; Strips; X-ray detection; X-ray detectors; X-ray imaging;
fLanguage
English
Publisher
ieee
Conference_Titel
Advanced Semiconductor Devices and Microsystems, 2004. ASDAM 2004. The Fifth International Conference on
Conference_Location
Smolenice Castle, Slovakia
Print_ISBN
0-7803-8335-7
Type
conf
DOI
10.1109/ASDAM.2004.1441148
Filename
1441148
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