A novel coded aperture for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e127" altimg="si150.svg"><mml:mi>γ</mml:mi></mml:math>-ray imaging based on compressed sensing

High spatial resolution is of great significance for the γ-ray imaging technique, whose performance is mainly limited by the spatial resolution of position sensitive detectors (PSDs). In this work, the compressive coded aperture is introduced in γ-ray imaging as the basic pattern, and enlarged with the “mosaic” method to increase the Fully Coded Field of View (FCFV) of the PSDs. In order to demonstrate the performance of the compressive coded...