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Radiography I > Processing the Image > Flashcards

Processing the Image Flashcards

1
Q

This should be light-tight, 6x8 ft, kept at 68*F, 40-60% humidity

A

Dark room

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2
Q

What type of bins should film be stored in? How should they be stored?

A

Metal, light-tight bins

Vertical

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3
Q

Filters out light that harms film

Usually dark red

A

Safelight

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4
Q

What is the safe wattage for a safelight?

A

15 or less

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5
Q

How far away should the safe light be from the work area?

A

> 4 ft

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6
Q

This type of safelight shines over the work area

A

Direct

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7
Q

This type of safelight shines facing the ceiling

A

Indirect

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8
Q

Used to ID film

A

Photo imprinter

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9
Q

Pencil, scratching, sharpies, and adhesive tape identifiers are all

A

temporary

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10
Q

How long does manual processing take?

A

1 hr

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11
Q

How long does automatic processing take?

A

90 sec per film

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12
Q

Alkaline environment of phenidone and hydroquinone

Converts silver halide to black on a film

A

Developer

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13
Q

If a film spends too much time in the developer

A

crystals that shouldn’t be converted will convert and cause film fog

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14
Q

Strong acidic environment of ammonium thiosulfate

Washes away unexposed silver halide crystals

A

Fixer

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15
Q

What happens if the film swims too long in the fixer?

A

Milky, pink radiograph

Discoloration

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16
Q

Preserves the film’s archival quality

A

Washing and Drying

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17
Q

Drying removes

A

85-95% moisture

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18
Q

With manual processing, how long should the film stay in the developer?

A

4 mins

19
Q

How long should the film stay in the fixer?

A

8 min

20
Q

How long should the film be washed?

A

12 mins

21
Q

The ______ the chemical, the faster it develops

A

warmer

22
Q

5 systems of the automatic processor

A
  1. Transport
  2. Replenishment
  3. Recirculation
  4. Thermostats
  5. Silver recovery
23
Q

The chemicals in the automatic processor are kept at

A

97*F

24
Q

Transport artifact where the marks are darker than surrounding emulsion

A

Plus density

25
Q

Transport artifact where the marks are lighter than the surrounding emulsion but still maintain emulsion

A

Minus density

26
Q

Transport artifact where the emulsion has been removed from the base either prior to processing or within the processor

A

Scratch marks

27
Q

Transport artifact where the emulsion is picked off the film base and redeposited on another area of the film
Leaves a tiny hole in the emulsion

A

Pick-off

28
Q

Transport artifact where the rollers are moving unevenly, and the film hesitates slightly

A

Hesitation marks

29
Q

Transport artifact where two or more gears need to be replaced the plus or minus density marks are not deposited in a specific pattern

A

Chatter

30
Q

Transport artifact where these plus density marks are specific to the circumference of the roller that caused the artifact

A

Pi lines

31
Q

Transport artifact that appear as fine lines on either the leading edge or trailing edge of the film that’s caused by the snapping of the film against the film guides of one tank to another

A

Guide shoe marks

32
Q

Chemical artifact where the film appears to have an oily pattern of color in reflected light
Caused by leaking or dripping fixer into the developer

A

Dichroic fog

33
Q

Chemical artifact where there is a flat and poor-contrast film; often films are damp when they exit the processor

A

Under-replenishment

34
Q

Chemical artifact where the images are dull and lack contrast
Hydroquinone is too cool to function

A

Temp too cool

35
Q

Chemical artifact where the images are dark and dull and lack contrast
Developer will exhaust quickly and turn dark brown

A

Temp too warm

36
Q

Chemical artifact where there is silver plating on the images

A

Fixer not replenishing correctly

37
Q

Chemical artifact where the fixer precipitates on the rollers, causing scratches

A

Fixer overconcentrated

38
Q

Chemical artifact where the films are milky white or pinkish and feel grainy or rough

A

Fixer exhausted

39
Q

Chemical artifact where the films are green or pink

There is an image but it blackens quickly

A

Fixer tank is empty

40
Q

Chemical artifact where the film has a blur pattern or minus and plus density

A

Incorrect mixing

41
Q

Chemical artifact where the films are milky and streaky in reflected light

A

Washer water tank is empty

42
Q

Chemical artifact where the films appear dirty and streaky, archival quality is compromised, and films turn yellow in 2-3 wks

A

Wash water tank not circulating

43
Q

What % of artifacts are due to processing?

A

98%

Radiography I (5 decks)

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