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Pinhole design for the experimental study: (a) X-ray tube with a designed collimator; (b) Zoomed in picture of the pinhole design where red lines indicate X-ray beams; (c) The schematic draw of the disk mounted at the end of the cylindrical steel rod; (d) An X-ray image of the two collimated X-ray beams; (e) The zoomed in image of the collimated X-ray beams.
