Characteristics of a robust and portable large area X‐ray fluorescence imaging system |
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| Authors: | R G Figueroa E Lozano F Belmar D Alcaman A von Bohlen C A B Oliveira A L M Silva J F C A Veloso |
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| Institution: | 1. Departamento de Ciencias Físicas, Universidad de La Frontera, , 01145 Chile;2. Instituto Nacional del Cáncer, , 1010 Santiago, Chile;3. Material Analysis Department, ISAS Bunsen‐Kirchhoff‐Str., , 11 44139 Dortmund, Germany;4. I3N, Physics Department, University of Aveiro, , 3810‐193 Aveiro, Portugal |
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| 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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