Which of the following components is not utilized for CR systems?

In Computed Radiography (CR) systems, an imaging plate is used to capture the radiographic image, and this plate contains a phosphor screen that absorbs the X-rays and then releases the stored energy as light when stimulated by a laser in the reader unit. The reader unit is essential for processing the image by converting the light emitted from the imaging plate into a digital signal for display or storage.

In contrast, a developer is not a component of CR systems. The developer is typically used in traditional film-based radiography to chemically process the film after exposure and create an image, whereas CR systems rely on the digital processing of signals from the imaging plate without the need for chemical development. Thus, while CR systems utilize the phosphor screen, imaging plate, and reader unit, they do not involve a developer in their image acquisition and processing workflow.