Experimental Setup to capture high resolution images for Quality Control of GEM Foils
August 02, 2019
This work presents an experimental setup to capture high-resolution images of GEM-foils developed at the Detector’s Laboratory at Antonio Nariño University. The setup consists of one digital camera with 18 megapixel CMOS aptina sensor attached to one 30 x 30 centimeters dual axis linear stepper to capture the high-resolution images. We used the high-resolution images to determine defects and geometry changes of the micro-holes contained in the GEM-foil using Software for Foils Analysis. The results show that using this setup, and the software is possible, identify variations in the geometry of the micro-holes of a GEM-foil up to one pixel = 1.25 µm. The automation of capture and image analysis improve the present quality control of GEM foils in accuracy and cost reduction.
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