An X-Ray cassette is a device used to record X-ray images on a film. It consists of a light-tight box with two plates, one of which is made of a special material that is sensitive to X-rays. X-ray cassettes come in various sizes and are used for various medical and industrial purposes. The cassette is placed between the X-ray source and the patient and the X-rays pass through the patient and are recorded on the film inside the light-tight box. The X-ray cassette is used to capture the X-ray images and can be used in radiography, fluoroscopy, computerized tomography, and other X-ray imaging techniques.