Image Formation Flashcards
1
Q
Image Formation
A
- Film
- Intensifying Screen
- Cassette
2
Q
- turns xray beams into an image
- latent image ; on the film, not yet developed
A
Image Receptors
3
Q
- displays the radiographic density
- photosensitive, capable of responding to photons
A
Films
4
Q
Parts
A
Base
Emulsion
5
Q
- protect from scratches
- antistatic
A
Overcoat
6
Q
- coating designed to glue the emulsion to the base and prevent bubbles or other distortion
A
Adhesive
7
Q
- foundation of radiographic film
- makes film rigid
A
Base
8
Q
- material of choice
A
glass plate (WW1)
cellulose nitrate (flammable)
cellulose triacetate (safety base)
polyseter (1960s)
9
Q
prevents eye strain & fatigue
A
Blue Dye
10
Q
- heart of radiographic film
- homogenous mixture of gelatin and silver halide crystals
- 3-5mm thick
A
Emulsion
11
Q
- mechanical support for silver halide crystals by holding them unifromly dispersed in place
- clear and flexible
- porous for processing chemicals to penetrate
A
Gelatin
12
Q
- active ingredient of the emulsion
- 98% silver bromide ; 2% silver iodide
A
Silver Halide Crystals
