lesson 2 Flashcards
it is a special photographic film consist of an emulsion-gelatin containing radiation and light-sensitive silver halide crystals and a flexible transparent blue-tinted base
x-ray film
it is part of a radiographic cassette made of phosphor material which converts the energy of the x-ray beam into visible light
intensifying screen
a flat, light-tight rectangle or square plastic or metallic container used to hold x-ray film and intensifying screens and backed by lead to eliminate the effects if backscatter radiation
film cassette
acquires the latent image and must be chemically processed before it is visible
radiographic film
the emulsion of film consist of what
silver halide crystals suspended in gelatin
a material that is sensitive to radiation and light
silver halide
composition of x-ray film
- super coat
- adhesive layer
- emulsion
- base
made of gelatin which serves as the protective covering for emulsion
supercoat
made of solvent, which ensures uniform contact of the emulsion to the base
adhesive layer
emulsion
- heart of the radiograph film (150 - 300 nm)
- consist of a homogenous mixture of gelatin and silver halide crystals
active ingredient of the radiographic emulsion
silver halide
98% of the silver halide is
silver bromide, the remainder is silver iodide
to provide a rigid structure onto which the emulsion and be coated
base
approximate thickness of the x-ray film
250-300 micrometer
blue sensitive film
monochromatic film
