10. Automatic Processor Flashcards

1
Q

standardize
the processing of radiographs with
consistency and efficiency

A

Automatic processing units

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2
Q

“Dry to dry” system

A

Automatic processing units

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3
Q

first automatic processor was

introduced by Pako

A

1942

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4
Q

transport roller were by

Eastman Kodak Company

A

1956

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5
Q

90 second rapid processing by

Eastman Kodak Company

A

1965

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6
Q

Konica introduce 45 second

automatic processing

A

1987

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7
Q

Requirements for automatic processor

A
  1. Control of temperature
  2. Agitation of chemical solutions
  3. Replenishment
  4. Minimum spilling of chemicals as film
    moves from tank to tank
  5. Transportation of film through system
    remains constant
  6. Time-temperature relationship
  7. Compact in size
  8. Strategic placement
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8
Q

Higher temperature, ____ the

processing

A

faster

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9
Q

As the rollers move, it will ____

the chemicals within tank

A

agitates

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10
Q

replace the used chemicals or
exhausted chemicals to maintain its
strength. Overtime, it can jeopardized
the quality of the image

A

Replenishment

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11
Q

Special chemical hardener added to
developer solution in automatic
processing

A

Glutaraldehyde

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12
Q

Time-temperature relationship

A

22 to 24 seconds at 92 to 94

degrees Fahrenheit

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13
Q

Systems that compose the automatic processor

A
  1. Transport system
  2. Recirculation system
  3. Replenishment system
  4. Wash system
  5. Dryer system
  6. Electrical system
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14
Q

Moves the film through the

processor

A

Transport system

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15
Q

steer film movement

A

Rollers

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16
Q

rollers and guide shoes to move

and change direction of film

A

Transport rack

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17
Q

Roller assembly

A

o Transport rollers
o Master rollers
o Planetary rollers

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18
Q

o 1 inch in diameter
o Positioned opposite to each other
o Positioned offset from one another

A

Transport rollers

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19
Q

o 3 inches in diameter

o Also known as “solar” roller

A

Master rollers

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20
Q

Number of rollers that surrounds the

master rollers

A

Planetary rollers

21
Q

o Most transport rollers are positioned
o They are easily removable and provide
for convenient maintenance and
efficient cleaning of the processor

A

Transport rack assembly

22
Q

Turn the film around in the bottom of

the tank

A

Turn-around assembly

23
Q

Moves the film from one tank to

another tank

A

Crossover assembly

24
Q

Special devices that guide the film to

change direction

A

Guideshoes

25
For a 180 degrees bending of film
Guideshoes
26
Squeeze the excess developer from the | wet film emulsion
Squeegee assembly
27
Transfer power to transport rack and | drive the rollers
Drive system
28
Used to connect the mechanical energy of the drive motor to drive mechanism of the rack assembly
Drive system
29
Drive system
o Belt and pulley o Chain and sprocket o Gears
30
Provides continuous mixing of the | chemicals
Recirculation system
31
Recirculation system is composed of
o Heater o Thermostat o Filters
32
Adds solution to the developer and fixer | as each film is processed
Replenishment system
33
The shorter dimension of the film should always be against the side rail to maintain proper replenishment rate
Replenishment system
34
Activates the pump that sends | replenisher solution to the tank
Microswitch
35
Replenishment rate
60 to 70 mL of developer and 100 to 110 mL of fixer for every 14 inches of film
36
Usually used in mammographic imaging in mammography and also in dental imaging
Small processors
37
Usually used in big hospitals that has | many patients since it is heavy duty
High volume unit processors
38
Removes excess chemicals
Wash system
39
Blows hot air across the surface of the | film to enhance drying on the surface
Dryer system
40
Consists of blower, ventilation ducts, | drying tubes and exhaust fan
Dryer system
41
Temperature of air is approximately
110 and 120 degrees Fahrenheit -Dryer system
42
Distributes fused power to each system
Electrical system
43
Maintaining the processing unit
1. Routine checks and cleaning of the transport rollers by lifting the racks of the tank 2. Careful examination and adjustment of guideshoes 3. Cleaning and replacement of filters throughout the processor unit
44
Processing as low as 30 seconds
Rapid processing
45
Usually used in angiography procedures, emergency, surgery, special procedures where time is critica
Rapid processing
46
3 minute processing time, usually used | in mammographic procedures
Extended processing
47
Extended processing | 2 principal advantages
- Greater image contrast | - Lower patient dose
48
Eliminates the need of darkroom
Daylight processing
49
Total load, unload and processing time | is 2 minutes
Daylight processing