RATIO

Gurney-Mott Theory

This explains the theory of the latent image

4-10

Number of Silver ions trapped in the sensitivity speck

3 - 5 micrometer

Thickness of emulsion layer

Microswitch

Not considered as part of the principal subsystem of the film transport system of an automatic processor

Improper patient positioning

Causes grid cutoff artifacta

Receptive to all colors

Panchromatic film is defined as

Calcium Tungstate

Type of IS used for blue-sensitive film

85 for 20 seconds

Time and temperature required for developing the film in an automatic processor

Weekly

Frequency of cleaning film viewer box

Photometer

Used to measure the luminance of the view box

10%

The allowed variation for the viewbox luminance

Sodium Carbonate

Chemical that acts as a buffer and source of alkali

Potassium Bromide

Chemical that acts as an anti-fogging agent

10-10.5 ph

Ph level of developer

Locks and Hinges

Parts of the cassette for easy opening and closing

Semi-anually

Frequency for checking lead apparel protective integrity

Patient Dose

One major disadvantage that accompanies the use of radiographic grid

Gardener (Glutaraldehyde)

Controls the swelling and softening of xray film in developer solution

100 - 110 cc/film

Average replenishment rate for fixer

X-ray absorption

Quantum detection efficiency is also referred to as

5 mins at 20 C or 68 F

Development time for manual processing

Washing

Stage of processing important for archival quality

3

Frequency of changing processing solutions is every __ months (if not specified)

Potassium Bromide

Restrained in a developer solution

Potassium bromide

Agent used to minimize fog and maintain chemical balance between fresh and seasoned chemicals

Chemical fog

This kind of fog causes overdevelopment

Chemical Precipitation

The oldest method of silver recovery

Wide

Double emulsion film has ___(wide/narrow) latitude

Lack of hardener (in D or F)

Most common cause of wet film emerging from an automatic processor

Aceitc acid

Acts as neutralizer during film development