Product Details

X-RAY-CASSETTES

• An X-ray cassette is a light-tight, rigid holder used in X-ray imaging to contain an X-ray film or imaging plate and hold it in close, uniform contact with an intensifying screen. The front of the cassette is made of a material that allows X-rays to pass through easily (like carbon fiber or plastic), while the back contains a high-atomic-number material (like lead) to block scattered X-rays and protect the film or plate. Cassettes are designed to be light-resistant and protect the film from external contaminants, ensuring a clear image is captured. 
• Light-Tight Container: 
• The cassette is a sealed, light-proof container, essential to prevent external light from exposing the film or imaging plate inside, which would compromise image quality. 
• Intensifying Screens: 
• Inside, the cassette holds one or two intensifying screens that convert X-rays into light, which then exposes the X-ray film. 
• Film or Imaging Plate: 
• The film or, in computed radiography (CR), the imaging plate is placed between these screens to capture the radiographic image. 
• Front Cover: 
• Made from a low-atomic-number material such as carbon fiber or aluminum, allowing X-rays to pass through with minimal attenuation. 
• Back Cover: 
• Contains a high-atomic-number material like lead to absorb scattered X-rays, which can reduce image quality. 
• Pressure Pad: 
• A foam or plastic pad inside the cassette helps maintain uniform contact between the intensifying screens and the film or imaging plate. 
• Role in Different Radiography Types:
• Conventional Radiography (Film-Screen): 
• Cassettes hold the film and screens together in a light-proof environment for exposure to X-rays. 
• Computed Radiography (CR): 
• Cassettes hold a reusable imaging plate, which is later processed digitally. 
• Direct Digital Radiography (DR): 
• Cassettes are not required as the imaging plate is directly integrated into the X-ray system.