Film Holder/Cassette Flashcards
1
Q
Cassette Construction includes:
A
- Front
- Lid
2
Q
Front of cassette is made of _______, ________, or ________ (electrically non-conductive and heat resistant). Light material sturdy enough to provide framework.
A
- Bakelight
- light metal
- carbon fiber
3
Q
Lid (back of cassette) is constructed with lead foil to prevent any radiation from __________ into the film causing ____ or unwanted densities.
A
- scattering back (back scatter)
- fog
4
Q
_________ or___________- to prevent outside leaks
A
- Felt
- Rubber-lined
5
Q
______ or _________ is placed behind the intensifying screen to provide good film-screen contact, which is imperative for good radiographic detail.
A
- Felt
- Sponge
6
Q
Poor film-screen contact decreases _______.
A
detail
7
Q
The _______________ is used to determine proper film-screen contact
A
wire-mesh test
8
Q
Poor film-screen contact involves:
A
- Increased Density
- Loss of detail or resolution
9
Q
Causes include:
A
- worn contact felt
- loose, bent, broken hinges/latches
- warped screen due to excessive moisture
- warped cassette front
- cracked cassette frame
- foreign matter under the screen
