Exposures

Question 1

Made of:

• Supercoat (Overcoat)
• Emulsion (2ble Emulsion)
• Adhesive
• BASE
• Adhesive
• Emulsion
• Supercoat

Answer 1

FILM

Question 2

Protects the Film

Answer 2

Supercoat

Question 3

Keep film uniform and together during processing

Answer 3

Adhesive

Question 4

• Heart of the film

- Stores Latent Image

Answer 4

Emulsion

Question 5

• Supports emulsion layer
• Transmits light to view image
• Non Inflammable
• Dimensionally stable

Answer 5

Base

Question 6

Image on the film that CANNOT be seen

Answer 6

Latent Image

Question 7

When Silver Ions migrate to negatively charged sensitivity speck (law of electrostatic opposites attract) and the Development process converts Silver Ions TO Metallic Silver Grains

Answer 7

Gurney-Mott Theory/Photoelectric Effect/Formation of Latent Image

Question 8

Narrow Latitude = what gray scale?

Answer 8

Short scale/ Black and White

Question 9

Wide Latitude = what gray scale?

Answer 9

Long scale/ Lots of grays

Question 10

How fast film blackening occurs in an exposure refers to…

Answer 10

Film Speed/Screen Speed

Question 11

The Faster the film the __________ the exposure.

What’s the benefit?

Answer 11

shorter. resulting in lower pt. exposure

Question 12

Faster films can also produce images that are grainy , reducing ____ __________.

Answer 12

Image Detail

Question 13

Film Speed and Screen Speed =

Answer 13

Relative Speed

Question 14

(mAs1/mAs2)=(RS2/RS1)

Answer 14

Screen Speed Conversion (Inversely Proportional)

Question 15

Name the Basic Components of Aut. Processor

Answer 15

1. Feed tray
2. Entrance Rollers
3. Developer
4. Fixer
5. Guide Shoes
6. Turn Around Assemblies
7. Dryer
8. Receiving Bin

Question 16

6 Systems of Aut. Processor

Answer 16

1. Transport System
2. Temperature Control System (35 degrees)
3. Circulation System
   -Flud System:
   depends on volume
   &how much you use it
   -Time Interval
   dental or doctor’s office
   4.Replenishment System
4. Dryer System
5. Electrical System
   -Mechanical Operation

Question 17

4 Main Steps to chemical processing

Answer 17

1. Developer
2. Fixer
3. Washer
4. Dryer

Question 18

What Developer Reducing Agent rapidly reduces fine detail shades of gray?

Answer 18

Phenidone

Question 19

What Developer Reducing Agent SLOWLY produces HEAVY densities?

Answer 19

Hydroquinone

Question 20

What Developer Activator produces alkaline pH, and SWELLS gelatin?

Answer 20

Sodium Carbonate

Question 21

What Developer Rstrainer DECREASES reducing agent activity, and is an ANTI FOGGING agent?

Answer 21

Potassium

Question 22

What Developer Preservative CONTROLS Oxidation and is a BUFFER Agent?

Answer 22

Sodium Sulfate

Question 23

What Developer Hardener Hardens the Emulsion and REDUCES gelatin swelling?

Answer 23

Glutaraldehyde

Question 24

What Fixer Clearing Agent REMOVES undeveloped silver halide from emulsion?

Answer 24

Ammonium

Question 25

What Fixer Activator Provides ACIDIC pH, and STOPS reduction?

Answer 25

Acetic Acid

Question 26

What Fixer Hardener Hardens the Emulsion?

Answer 26

Potassium Alum

Question 27

What Fixer Preservative MAINTAINS pH?

Answer 27

Sodium Sulfite

Question 28

SOLVENT that DISSOLVES chemicals

Answer 28

WATER

Question 29

EVAPORATES water and HARDENS emulsion

Answer 29

Hot Air