Abstract
A low-cost and portable Energy Disperse X-Ray Fluorescence imaging system is presented. It is capable of scanning large areas (up to 10 × 10 cm2) in steps as small as 0.2 mm. It consists of a small X-ray tube and a Silicon Drift Detector, both controlled by a homemade software. The spatial resolution is evaluated as a function of the step width and of the X-ray collimator diameter. The time of acquisition per unit of scanned surface is studied as a function of the step width and of the time of acquisition per point. X-ray fluorescence images showing the 2D distributions of some elements in biological samples are presented. Copyright © 2013 John Wiley & Sons, Ltd.
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