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RADIOGRAPHIC FILM PROCESSING DARKROOM. THE PROCESSING AREA. PROCESSING AREA VIEWING SECTION. VIEWING AREA. PROCESSING AREA. VIEWING SECTION VIEWBOX ILLUMINATION INTENSITY-500-1000 FOOT CANDLES. PHOTOMETER IS USED TO MEASURE VIEWBOX ILLUMINATION INTENSITY. VIEWING STATION.
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THE PROCESSING AREA • PROCESSING AREA • VIEWING SECTION
VIEWING AREA PROCESSING AREA
VIEWING SECTION VIEWBOX ILLUMINATION INTENSITY-500-1000 FOOT CANDLES
PHOTOMETER IS USED TO MEASURE VIEWBOX ILLUMINATION INTENSITY
MOST OF MODERN MEDICAL IMAGING DEPARTMENTS USE AUTOMATIC PROCESSORS—MOST OF THOSE ARE DAYLIGHT PROCESSORS
BASIC COMPONENTS OF DARKROOM STORAGE SHELVES WORKBENCH
FILM BIN ANATOMY CONTAINS INDIVIDUAL SLOTS THAT HOLD FILMS OF DIFFERENT SIZES
TYPICAL DARKROOM FILM BIN OTHER FILMS 8 x 10 10 x 12 11 x 14 14 x 17 FRONT
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 RADIOGRAPHIC FILM SIZES
DARKROOM LIGHT • WHITE LIGHTS • SAFELIGHTS
WHITE LIGHT IS USED FOR: EQUIPMENT REPAIR AND DARKROOM CLEANING
SAFELIGHTS USED DURING FILM PROCESSING
SAFELIGHT BULBSINCANDESCENT RECESSED WITHIN METALLIC LIGHT FIXTURE • RED FILTER-- KODAK GBX-2 OR GS-1 • AMBER FILTER --WRATTEN 6B
SAFELIGHTS • RED—GREEN LIGHT SENSITIVE FILM ORTHOCHROMATIC • AMBER –BLUE LIGHT SENSITIVE FILM • TOTAL DARKNESS FOR PANCHROMATIC FILM
AT LEAST 3 FEET FROM THE FILM TRAY 7.5 W FILM TRAY
AT LEAST 4 FEET FROM THE FILM TRAY 15 W FILM TRAY
LATENSIFICATION INCCREASED SENSITIVITY TO SAFELIGHT ILLUMINATION AFTER FILM WAS EXPOSED
LEAD SHIELDING IF ADJACENT TO X-RAY ROOM • 1/16 INCH OF LEAD IN THE WALLS ALL THE WAY TO THE CEILING.
IF ADJACENT TO X-RAY ROOMS • PASS-BOXES NEEDED TO PASS FILMS DIRECTLY FROM THE X-RAY ROOM TO DARKROOM
VENTILATION • SYSTEM MUST BE LIGHTPROOF AND ABLE TO FILTER OUT DUST
HUMIDITY • 40-60% • > 60%--FILM FOG • <40% STATIC ARTIFACTS
SIZE • BIG ENOUGH!!!?
COLOR • WALLS AND CEILING CAN BE PAINTED IN ANY COLOR
TEMPERATURE • 50-70 º F FOR FILM STORAGE– TO SLOW DOWN THE AGING PROCESS OF THE FILM
STORE YOUR FILMS STANDING ON THE EDGE TO AVOID PRESSURE MARKS. USE FILM STORAGE CARTS OR SHELVES
COLOR OF THE MAZE DARK-- NOT OT REFLECT WHIT LIGHT INTO THE DARKROOM
WHITE LIGHT LEAKS SAFELIGHT FOG DARKROOM TESTING