RADIOGRAPHIC FILM PROCESSING DARKROOM

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RADIOGRAPHIC FILM PROCESSINGDARKROOM
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THE PROCESSING AREA

• PROCESSING AREA
• VIEWING SECTION

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VIEWING AREA
PROCESSING AREA
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VIEWING SECTION VIEWBOX ILLUMINATION
INTENSITY-500-1000 FOOT CANDLES
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PHOTOMETER IS USED TO MEASURE VIEWBOX
ILLUMINATION INTENSITY
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VIEWING STATION
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VIEWING AREA HOT LIGHT
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MOST OF MODERN MEDICAL IMAGING DEPARTMENTS USE
AUTOMATIC PROCESSORSMOST OF THOSE ARE DAYLIGHT
PROCESSORS
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AUTOMATIC DAYLIGHT PROCESSORS
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AUTOMATIC DARKROOM PROCESSORS
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AUTOMATIC DARKROOM PROCESSORS
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MANUAL PROCESSING
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DARKROOM
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BASIC COMPONENTS OF DARKROOM
STORAGE SHELVES
WORKBENCH
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BASIC COMPONENTSPROCESSORDeveloperwaterfixer
drayerManual
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BASIC COMPONENTSCHEMISTRY MIXING TANKS
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BASIC COMPONENTSFILM DUPLICATOR
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DUPLICATING FILM EXPOSED TO ULTRAVIOLET RADIATION
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BASIC COMPONENTSFILM FLASHER
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BASIC COMPONENTSSILVER RECOVERY SYSTEM
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BASIC COMPONENTSFILM BIN
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FILM BIN AUDIO ALARM
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FILM BIN ANATOMY

• CONTAINS INDIVIDUAL SLOTS THAT HOLD FILMS OF
  DIFFERENT SIZES

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TYPICAL DARKROOM FILM BIN
OTHER FILMS
8 x 10
10 x 12
11 x 14
14 x 17
FRONT
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RADIOGRAPHIC FILM SIZES

• 14 X17
• 11 x 14
• 10 x 12
• 8 x 10
• 7 x 17
• 6 x 12
• 14 x 36

• 35 x 43
• 28 x 35
• 25 x 30
• 20 x 25
• 18 x 43
• 15 x 30
• 35 x 91

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DARKROOM LIGHT

• WHITE LIGHTS
• SAFELIGHTS

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WHITE LIGHT IS USED FOR

• EQUIPMENT REPAIR AND DARKROOM CLEANING

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SAFELIGHTS USED

• DURING FILM PROCESSING

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SAFELIGHT BULBSINCANDESCENT RECESSED WITHIN
METALLIC LIGHT FIXTURE

• RED FILTER-- KODAK GBX-2 OR GS-1
• AMBER FILTER --WRATTEN 6B

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SAFELIGHTS

• REDGREEN LIGHT SENSITIVE FILM ORTHOCHROMATIC
• AMBER BLUE LIGHT SENSITIVE FILM
• TOTAL DARKNESS FOR PANCHROMATIC FILM

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AT LEAST 3 FEET FROM THE FILM TRAY
7.5 W
FILM TRAY
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AT LEAST 4 FEET FROM THE FILM TRAY
15 W
FILM TRAY
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LATENSIFICATION

• INCCREASED SENSITIVITY TO SAFELIGHT ILLUMINATION
  AFTER FILM WAS EXPOSED

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DARKROOM DESIGN
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LEAD SHIELDING IF ADJACENT TO X-RAY ROOM

• 1/16 INCH OF LEAD IN THE WALLS ALL THE WAY TO THE
  CEILING.

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IF ADJACENT TO X-RAY ROOMS

• PASS-BOXES NEEDED TO PASS FILMS DIRECTLY FROM
  THE X-RAY ROOM TO DARKROOM

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VENTILATION

• SYSTEM MUST BE LIGHTPROOF AND ABLE TO FILTER OUT
  DUST

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HUMIDITY

• 40-60
• gt 60--FILM FOG
• lt40 STATIC ARTIFACTS

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SIZE

• BIG ENOUGH!!!?

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COLOR

• WALLS AND CEILING CAN BE PAINTED IN ANY COLOR

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TEMPERATURE

• 50-70 º F FOR FILM STORAGE TO SLOW DOWN THE
  AGING PROCESS OF THE FILM

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WOULD YOU STORE IT LIKE THIS???
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STORE YOUR FILMS STANDING ON THE EDGE TO AVOID
PRESSURE MARKS. USE FILM STORAGE CARTS OR SHELVES
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DARKROOM ENTRANCE REVOLVING DOOR
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DARKROOM ENTRANCESINGLE DOOR
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DARKROOM ENTRANCEDOUBLE DOOR
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DARKROOM ENTRANCEMAZE
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COLOR OF THE MAZE

• DARK-- NOT OT REFLECT WHIT LIGHT INTO THE DARKROOM

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DARKROOM TESTING

• WHITE LIGHT LEAKS
• SAFELIGHT FOG

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SAFELIGHT TEST