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arXiv · 1904.08466

Characterization of a triple-GEM position sensitive detector for X-ray fluorescence imaging

Geovane G. A. de Souza·Hugo Natal da Luz
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Abstract

In this work we characterized a X-ray position sensitive gaseous detector based in a triple stack of gas electron multipliers (GEM). The readout circuit is divided in 256 strips for each dimension and using a resistive chain interconnecting the strips, we are able to reconstruct the radiation interaction points by resistive charge division. The detector achieved gains above $10^4$, energy resolution of 15.28% (FWHM) for 5.9keV X-rays, and position resolution of 1.2mm, while operating in Ar/CO$_2$(90/10) at atmospheric pressure.

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Geovane G. A. de Souza, Hugo Natal da Luz. 2019-04-17. Characterization of a triple-GEM position sensitive detector for X-ray fluorescence imaging. https://doi.org/10.1002/xrs.3068

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