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A simple X-ray imaging system using off-the-shelf electronics and simplereconstruction algorithms aiming a spatial resolution of 1.7 mm ($\sim 3\,\%$of the detector length) is described in this work. For this, two 100 cm$^2$ GasElectron Multiplier (GEM) foils with a thickness of 100 \mu m (2-fold thickerthan the standard ones) were immersed in a mixture of argon and carbon dioxide(70:30). The charge readout with 2D position determination was done withresistive charge division.  Due to their higher thickness with respect to the standard GEMs, the 100 \mum thick GEM foils were found to be less prone to damage caused by theelectrical discharges.  X-ray images are shown and some descriptions of the physical processesinvolved are presented. We describe the advantages of this method that allowscounting each X-ray photon or particle entering the detector, its interactionposition, as well as measuring of its energy. The results of our present workshow a position resolution below 2 mm, being limited by the gas mixture used,and not the detecting system, with a very good cost effectiveness. Future workis being carried out to optimize the present system for a medical applicationas a proton beam monitor.

X-ray imaging with GEMs using $100\,\mu$m thick foils