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70 Cards in this Set
- Front
- Back
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What is contained in Dry and Wet side of Darkrooms?
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Dry: Loading bench, lightproof film storage bin, storage area, auto processor, qc devices, film hangers (located in end not above loading bench)
WET: sinks, drains and water valves, chemical solution, radiographic illumination (view boxes)manual processing tanks, film dryer |
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Equipment under DRY and WET Darkrooms?
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Dry: Loading bench, lightproof film storage bin, storage area, auto processor, qc devices, film hangers (located in end not above loading bench)
WET: sinks, drains and water valves, chemical solution, radiographic illumination (view boxes)manual processing tanks, film dryer |
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Rule of thumb, conversion factors every change of 2 degrees in temp is to decrease or increase in time by?
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15%
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Advantages of centrally located darkroom?
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to save operating expenses, takes fewer personnel to operate, less maint to repair and processing of equip, better quality control can be establish, film run under same conditions creating consistency and reliability, size of darkroom will depend on size, pt load and funding.
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Advantages of disbursed darkroom?
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DR is located nearby, radiographer covers less distance,radiographer can tend to pt if needed, communication is better, loss and incorrect pt ID is reduced
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Thickness of lead shielding to adjacent rooms?
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1/16 lead shielding all the way up to the ceiling.
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Dispersed darkrooms, every how many rooms are served?
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Every 2 exam rooms.
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Readily accessible in dispersed DR?
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Plumbing and electrical service.
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What kind of DR entrance preffered?
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Revolving door
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Kind of DR that occupies less space and preferred?
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Revolving door
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Recommended component of single door compartment?
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Inside doorlocks
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What is to be considered when establishing the size of the darkroom?
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large enough to house: benches for loading and unloading films
film storage bins processing tanks replenishment tanks film dryer refrigeration system |
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Types if illumination used in a DR?
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Safelight
General Radiographic view boxes |
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3 different types of illuminations?
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Safelight
General Radiographic view boxes |
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Materials neeeded to cover the DR walls?
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Chemical resistant materials
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What is contained in Dry and Wet side of Darkrooms?
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Dry: Loading bench, lightproof film storage bin, storage area, auto processor, qc devices, film hangers (located in end not above loading bench)
WET: sinks, drains and water valves, chemical solution, radiographic illumination (view boxes)manual processing tanks, film dryer |
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Equipment under DRY and WET Darkrooms?
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Dry: Loading bench, lightproof film storage bin, storage area, auto processor, qc devices, film hangers (located in end not above loading bench)
WET: sinks, drains and water valves, chemical solution, radiographic illumination (view boxes)manual processing tanks, film dryer |
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Rule of thumb, conversion factors every change of 2 degrees in temp is to decrease or increase in time by?
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15%
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|
|
Advantages of centrally located darkroom?
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to save operating expenses, takes fewer personnel to operate, less maint to repair and processing of equip, better quality control can be establish, film run under same conditions creating consistency and reliability, size of darkroom will depend on size, pt load and funding.
|
|
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Advantages of disbursed darkroom?
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DR is located nearby, radiographer covers less distance,radiographer can tend to pt if needed, communication is better, loss and incorrect pt ID is reduced
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Thickness of lead shielding to adjacent rooms?
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1/16 lead shielding all the way up to the ceiling.
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Dispersed darkrooms, every how many rooms are served?
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Every 2 exam rooms.
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Readily accessible in dispersed DR?
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Plumbing and electrical service.
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What kind of DR entrance preffered?
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Revolving door
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Kind of DR that occupies less space and preferred?
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Revolving door
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Recommended component of single door compartment?
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Inside doorlocks
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What is to be considered when establishing the size of the darkroom?
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large enough to house: benches for loading and unloading films
film storage bins processing tanks replenishment tanks film dryer refrigeration system |
|
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Types if illumination used in a DR?
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Safelight
General Radiographic view boxes |
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3 different types of illuminations?
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Safelight
General Radiographic view boxes |
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Materials neeeded to cover the DR walls?
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Chemical resistant materials
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What are the Chemical resistant materials for darkroom walls?
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special paint
varnish lacquer ceramic tile plastic walls provide more durable finish |
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What finish is more durable? Ceramic or Plastic?
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Plastic walls
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Kind of DR floor covering that is chemically stable and resistant.
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Asphalt tile
Porcelain or clay tile (nonskid must be incorporated) ordinary linoleum or concrete are unsuitable. |
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Why linoleum and concrete is unsuitable?
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They are readily attacked by processing chemicals.
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State the purpose for ventilation in the darkroom?
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Essential for technologist's health.
Removal of stale humid air Supply of fresh air must be adequate.Exhaust fans is adequate for small offices or dr. A/C is preferred method. system must be light proof, filtering system to filter dust b4 entry must be incorperate. |
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Preferred method of ventilation in a DR?
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A/C
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Optimal temp for manual processing?
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68-72 degrees F (20-22 degrees C)
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How are temperatures controlled in manual processing?
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Water should be circulated around processing tank inserts to maintain optimal temp
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2 types of manual processing tanks?
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3 compartment and 4 compartment
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4 compartment tanks of a manual processing consist of?
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2 insert tanks which consists of developing tank, and fixing tank.
2 master compartment tanks which consists of 1st tank which the 2 inserts are placed and the second tank serves as the washing tank. |
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The level of solution from the top of the tank in manual processing is?
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1 inch from the top
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What is a critical element before starting a work day?
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Checking and monitoring the developer
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What is the chemicals that are unpredictable over 75 degrees F or 24 degrees C?
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Elon and methol
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Optimum temp for developement in manual processing is?
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68-72 degrees F (20-22 degrees C)
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Primary reason for the cause of chemical fog?
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Excessive temperatures.
Oxidized or deteriorated developer. Prolonged orr repeated inspection of films during development. |
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Common artifacts: Which one causes the brown stains?
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Oxidized developer
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Common artifacts: Types of stains?
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Brown
varieted color pattern grayish yellow or brown grayish white scum |
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Purpose of Replenisher Pump?
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Device that maintains the:
Alkalinity of developer Acidity of fixer Chemical strength of both solutions. |
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What keeps the chemicals adequate?
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Replenisher pumps?
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Parts of the automatic processors?
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Film transport
Ciculation/ Filtration system The tempering system The replenishment system The dryer system |
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Purpose of the feed tray?
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A tray that accepts the film and loads it into various sections.
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Crossover racks does?
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Serves to guide film from one deep tank to another.
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Stage of processing in which the latent image is converted to a manifest image?
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Development
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Advantages of automatic vs manual processing?
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ASK PINEDA FOR A COPY
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Reasons why Manual Processing is not suitable to Automatic processing?
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Conventional chemicals
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Occurs when guideshoe is improperly positioned?
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Guideshoe marks
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What happens if film is ran with inadequate spacing on the rollers?
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To avoid slipping or jamming of films.
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Crossover rack's purpose?
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serves to guide film from one deep tank to another
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State systems used for automatic processing?
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Film transport
Circulation/ Filtration system The tempering system The replenishment system The dryer system |
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What replaced the agitation in manual processes in auto processes?
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circulation system
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Type of artifact where they appear as areas of either increased or decreased density.
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Emulsion pickup and gelatin buildup.
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Artifact that has the distance of the interval is equal to the circumference of the roller.
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Pi Lines
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Occurs when the guide shoe is improperly positioned.
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Guideshoe marks
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Artifact caused by dirt or a chemical stain on a roller.
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Pi Lines
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Required for the daily maintenance of automatic processor?
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Secure source power
Remove and clean the feed roller rack, crossover racks, evaporation lids. Drain water tank by opening the drain valve. Wipe any spilled chemicals both inside and out. Make log entry. |
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Required for the weekly maintenance of automatic processor?
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Perform the daily maintenance
Depends on the Pt load Remove and clean deep racks inspect loose, missing screws and tension springs Inspect rollers Check chemical tanks -solution levels -foreign objects make log entry |
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When was PMRP implemented?
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December 1976
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Type of process which tolerates h20 current more?
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Automatic processor
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Type of approach when working with manual processing to ensure efficiency?
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Scientific approach
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Leaves round marks on the film?
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Water marks
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