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Updated: May 13, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
X-ray imaging inside the focal spot of polycapillary optics using the coded aperture concept
K M Dąbrowski1, D T Dul, P Korecki
1Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland.
Abstract:
We present a method for x-ray imaging of objects inside the focal spot of polycapillary optics that resolves details smaller than the focal spot dimensions. This method employs coded aperture imaging, in which the micro-structure of polycapillary optics is treated as the coding pattern. Projection of the object is decoded from a magnified x-ray image of the polycapillary structure which is specifically sharpened by the object. Field of view can be extended by scanning the object across the focal spot.
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