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Proceedings Paper

Characteristics Of A Linear Xenon Detector Array For Digital Radiography
Author(s): D. J. Drost; A. Fenster
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Paper Abstract

We have designed and built an experimental linear xenon detector array to test its suitability as an x-ray detector for digital radiography. This new design consists of only two plates separated by a 0.5 mm gap filled with high pressure xenon gas. One of the plates is a high voltage electrode and the other is a circuit board etched to give an array of metal collector strips focussed on the x-ray source. Each stria or detector element is 9.5 mm wide and 6.3 cm long. This detector is simpler and more economical to build than the CT xenon x-ray detectors, in which detector elements are separated by metal septa occupying approximately 40% of the detector cross-sectional area. This new xenon detector design is described along with its calculated quantum efficiency, and its measured sensitivity, linearity, and cross-talk between detector elements. From these results it is evident that this detector is suitable for digital radiography as it is dose efficient, and has less than 10% cross-talk.

Paper Details

Date Published: 16 July 1981
PDF: 6 pages
Proc. SPIE 0273, Application of Optical Instrumentation in Medicine IX, (16 July 1981); doi: 10.1117/12.931791
Show Author Affiliations
D. J. Drost, University of Toronto (Canada)
A. Fenster, University of Toronto (Canada)

Published in SPIE Proceedings Vol. 0273:
Application of Optical Instrumentation in Medicine IX
James A. Mulvaney; Joel E. Gray; Arthur G. Haus; William S. Properzio, Editor(s)

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