Final answer:
Digital radiography cassettes are also known as image receptors, which capture and store digital images using components like scintillation detectors and CCD cameras, employed in medical diagnostic imaging.
Step-by-step explanation:
Digital radiography cassettes are also known as image receptors. They are the part of the digital radiography system that captures and stores an image after it has been exposed to X-rays. Unlike traditional film-based radiography, digital radiography cassettes can be immediately processed to produce an image, which can then be viewed on a computer screen. The technology includes various components such as photomultiplier tubes, scintillation detectors, and CCD cameras which all rely on the particle-like properties of photons to create an image. Biomedical imaging systems employ these detectors to enable various medical diagnostic techniques, including those used in computed tomography (CT) scans and single-photon-emission computed tomography (SPECT).