Local radiation imaging via three-dimensional (3d) cadmium-zinc-telluride (czt) systems with aperture masks

A system for intraoperative localized radiation imaging for an anatomical body, the system comprising:

• a mobile imager device comprising therewithin a plurality of cadmium-zinc-telluride (CZT) crystals each configured for 3D-sensitive detection of incident radiation based on charge drift through each CZT crystal in response to the incident radiation;
• an aperture mask having a plurality of openings through a radiation blocking material, the plurality of openings being located throughout the aperture mask in an arrangement configured to align with the plurality of CZT crystals, wherein each of the plurality of openings is configured to project a radiation emission distribution from radiation sources located within an imaging region of the anatomical body onto one or more of the plurality of CZT crystals;
• a processing subsystem comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the processing subsystem to perform operations comprising:
• reconstruct a 3D radiation image based on the charges generated by the plurality of CZT crystals in response to the radiation emission distribution being projected by each of the plurality of openings onto the plurality of CZT crystals.