Film-Screen Acquisition, Processing and Image Analysis

Question 1

The most important consideration in selecting screen film.

Answer 1

Spectral Matching

Question 2

Emit blue and blue violet light

Answer 2

Calcium Tungstate Screen

Question 3

Ultraviolet, blue, green and red.

Answer 3

Rare-earth elements

Question 4

green sensitive film.

Answer 4

Orthochromatic film

Question 5

sensitive to the entire visible light spectrum.

Answer 5

Panchromatic film

Question 6

blue-sensitive film, an ———, —— wavelength.

Answer 6

Amber filter, 550 nm

Question 7

green-sensitive and blue sensitive film, a ———, —— wavelength.

Answer 7

Red filter, 600 nm

Question 8

How many percent does a film humidity have?

Answer 8

40-60%

Question 9

How many percent if the fog increases?

Answer 9

60%

Question 10

How many percentage if static artifacts?

Answer 10

40%

Question 11

2 types of tanks

Answer 11

Master tanks
Insert tanks

Question 12

This tank serves as a water jacket to hold the insert tanks.

Answer 12

Master Tank

Question 13

These are removable containers for the individual processing solutions (developer and fixer), and are spaced in the master tanks.

Answer 13

Insert Tanks

Question 14

Processing Materials are?

Answer 14

Developer and Fixer

Question 15

The term applied to the chemical reactions that
transform the latent image into a manifest image.

Answer 15

Film Processing

Question 16

Development, ——, ——, Washing, ——

Answer 16

Rinsing
Fixing
Drying

Question 17

it penetrates the gelatin of the emulsion,
causing it to swell.

Answer 17

Wetting

Question 18

What is the wetting agent?

Answer 18

Water

Question 19

convert the latent image into a visible image.

Answer 19

Development

Question 20

what chemical that produces shades of gray rapidly?

Answer 20

Phenidone, Metol

Question 21

what chemical and component that produces black tones slowly?

Answer 21

Hydroquinone- Developing Agent

Question 22

Removes metallic impurities

Answer 22

Sequestering Agent - Chelates

Question 23

Antifog agent; protects unexposed crystals from chemical “attack”.

Answer 23

Restrainer - Potassium Bromide

Question 24

helps swell gelatin; produces alkalinity; controls pH

Answer 24

Activator - Sodium Carbonate

Question 25

controls oxidation; maintains balance among developer components.

Answer 25

Preservative - Sodium Sulfite

Question 26

controls emulsion swelling and enhances archival quality.

Answer 26

Hardener - Glutaraldehyde

Question 27

Dissolves chemicals for use.

Answer 27

Solvent - Water

Question 28

The Developer contains alkali components or ———?

Answer 28

Buffering Agents

Question 29

2 Buffering Agents:

Answer 29

Sodium Carbonate Sodium Hydroxide

Question 30

What is the strongest alkali?

Answer 30

Sodium Hydroxide

Question 31

EUR / OPE

Answer 31

Electrons, Used, Reduction Oxidation, Produces, Electrons

Question 32

neutralize positive ion.

Answer 32

Reduction

Question 33

opposite of reduction; reaction that produces electron.

Answer 33

Oxidation

Question 34

reduction and oxidation work simultaneously.

Answer 34

Redox Reaction

Question 35

When development is complete, the film must be treated so that the image will not fade. What stage is this?

Answer 35

Fixing

Question 36

slowly oxidizes and causes the image to discolor to brown over a long time.

Answer 36

Excess Hypo

Question 37

Neutralize developer and stop its action

Answer 37

Activator - Acetic Acid

Question 38

Maintains chemical balance.

Answer 38

Preservative - Sodium Sulfite

Question 39

removes undeveloped silver bromine from the emulsion.

Answer 39

Fixing Agent- Ammonium Thiosulfate

Question 40

stiffens and shrinks emulsion.

Answer 40

Hardener - Potassium Alum

Question 41

Its the term used to describe the undesirable retention of the fixer in the emulsion.

Answer 41

Hypo Retention

Question 42

Maintains proper pH.

Answer 42

Buffer - Acetate

Question 43

Remove aluminum ions.

Answer 43

Sequestering Agent - Boric Acid/ Salt

Question 44

Dissolves other components.

Answer 44

Solvent - Water

Question 45

This stage in processing is to wash away any residual chemicals remaining in the emulsion.

Answer 45

Washing

Question 46

What temperature washing should be maintained?

Answer 46

3 C 5 F

Question 47

Final step of film processing

Answer 47

Drying

Question 48

2 Types of drying:

Answer 48

Manual Processing Automatic Processing

Question 49

takes longer than 1 hour to be completed.

Answer 49

Manual Processing

Question 50

the dry-to-drop time is 90 seconds

Answer 50

Automatic Processing