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Persistent URL http://purl.org/net/epubs/work/34196
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Record Id 34196
Title A Monte-Carlo model of the spatial resolution in X-ray imaging gas counters - a study of the basic physical limitations
Abstract X-ray imaging counters which utilise some form of gas-avalanche technology (parallel gaps, wires or point anodes) have a history stretching back at least three decades and inexorable advance of micro-electronic technology continues to provide more variations on the basic theme (e.g. gas microstrips, micro-dots, GEMs,Compteur a Trous, etc) The spatial resolution obtainable from any particular device is a complex convolution of the various processes which intervene between the absorption of the x-ray in the gas and the final evaluation of a particular statistic in the electronic readout ( or the attached computer) which represents the position of this interaction. The quantised and statistical nature of the processes involved make Monte-Carlo modelling particularly appropriate and the great computing power of modern personal computers (PCs) make the task viable. This approach is seen as a partial replacement for the traditional role of the prototype in the design process for detectors. In this report the code developed to model the performance of practical imaging detectors is modified to permit an exploration of the physical limitations on imaging with gas mixtures based on argon and xenon in the x-ray energy range 1keV to 20keV.
Organisation CCLRC , CLF-LFS , EID , CSE-NAG
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report RAL Technical Reports RAL-TR-2005-010. 2005. raltr-2005010.pdf