Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
What colour should a dark room be painted? |
White |
|
|
What temperature should a dark room be? |
23-25* |
|
|
Wattage of a safe light bulb? |
15 W |
|
What is the active ingredient in developer? |
Phenidone-hydtoquinone |
|
The active ingredient in fixer is |
Ammonium thiosulphate |
|
|
How long should you wash a radiograph for? |
15-30 minutes |
|
|
What stage is omitted from an automatic processor? |
Rinse/stop bath |
|
What temperature should automatic processing chemicals be kept? |
28 degrees |
|
|
What grains on the film base react with light? |
Silver halides |
|
|
The phosphor calcium tungstate emits what colour light? |
Blue |
|
Shattered radiation increases with |
Increased kV |
|
|
What is used as a filter to stop low energy xrays leaving the tube window? |
Aluminium |
|
|
Fast film requires what exposure? |
Quick exposure |
|
|
What is a latent image? |
Exposed to xrays but not yet developed |
|
The target of an x-ray tube is made of |
Tungsten |
|
|
What can cause a film to be too pale? |
Exhausted developer |
|
|
What controls the quality and power of the x-ray beam? |
kV |
|
Inherited abnormalities caused by radiography are due to |
Genetic effect |
|
|
A film that is too dark may be due to |
FFD too short |
|
What does soot and whitewash refer to? |
The kV is too low |
|
|
Dirty marks or damage to the intensifying screen will cause what on the x-ray film |
White marks |
