What Is Image Receptor ?
In radiography the image receptor (IR) is the device that receives the energy of the x-ray beam and forms the image of the body part. In diagnostic radiology, the image receptor will be the following four devices.
A) Cassette with film.
B) Image plate (IP).
C) Direct radiography (DR).
D) Fluoroscopic screen.
A) Cassette with film :-A device that contains special screens that glow when struck by x-rays and imprints the x-ray image on film. The use of a darkroom is required where the film is developed in a processor. Afterward the radio- graphic film image is ready for viewing on an illuminator.
B) Image plate (IP) :-A device imilar to a cassette that contains special phosphorus that store the x-ray image. The IP is inserted into a reader device, which does not require a darkroom. The radiographic image is then converted to digital format and is viewed on a computer monitor or printed out on film.
C) Direct radiography (DR) :-Does not use a casette or an IP. A flat panel detector built into the x-ray table or device captures the x-ray image and converts it into digital format. The image is then viewed on a computer monitor or printed out on film.
