IMAGE ACQUISITION FILM SCREEN SYSTEM

PROCESSING THE LATENT IMAGE AUTOMATIC AUTOMATIC DARKROOM PROCESSOR DARKROOM PROCESSOR DAYLIGHT PROCESSOR DAYLIGHT PROCESSOR 45 SECONDS TO 3.5 MINUTE PROCESSORS 45 SECONDS TO 3.5 MINUTE PROCESSORS PROCESSOR CAPACITY=# OF FILMS THAT CAN BE PROCESSED PER MINUTE PROCESSOR CAPACITY=# OF FILMS THAT CAN BE PROCESSED PER MINUTE LARGER FILM SIZES TAKE LONGER TO GO THROUGH THE PROCESSING CYCLE LARGER FILM SIZES TAKE LONGER TO GO THROUGH THE PROCESSING CYCLE

FOUR STAGES OF PROCESSING DEVELOPER DEVELOPER FIXER FIXER WASH WASH DRY DRY

DEVELOPER LATENT TO MANIFEST IMAGE LATENT TO MANIFEST IMAGE AMPLIFY AMOUNT OF ATOMIC SILVER AT SENSITIVITY SPECK AMPLIFY AMOUNT OF ATOMIC SILVER AT SENSITIVITY SPECK REDUCE THIS SILVER TO METALLIC SILVER REDUCE THIS SILVER TO METALLIC SILVER METALLIC SILVER TRANSLATES TO VARIOUS RADIOGRAPHIC DENSITIES METALLIC SILVER TRANSLATES TO VARIOUS RADIOGRAPHIC DENSITIES UNEXPOSED SILVER HALIDE DOES NOT REACT TO THE DEVELOPING CHEMICALS UNLESS… UNEXPOSED SILVER HALIDE DOES NOT REACT TO THE DEVELOPING CHEMICALS UNLESS…

DEVELOPER CONT. THE FILM STAYS IN THE DEVELOPING CYCLE TOO LONG THE FILM STAYS IN THE DEVELOPING CYCLE TOO LONG OR OR THE DEVELOPING TEMP. IS TOO HIGH THE DEVELOPING TEMP. IS TOO HIGH WHAT MIGHT CAUSE A FILM TO STAY TOO LONG IN THE DEVELOPER? WHAT MIGHT CAUSE A FILM TO STAY TOO LONG IN THE DEVELOPER?

DEVELOPING AGENTS YES…YOU NEED TO KNOW AGENTS BUT YOU DO NOT NEED TO KNOW THE SPECIFIC CHEMICALS YES…YOU NEED TO KNOW AGENTS BUT YOU DO NOT NEED TO KNOW THE SPECIFIC CHEMICALS DEVELOPING OR REDUCING AGENTS DEVELOPING OR REDUCING AGENTS ACCELERATOR OR ACTIVATOR ACCELERATOR OR ACTIVATOR ALKALINE ALKALINE RESTRAINER RESTRAINER PRESERVATIVE PRESERVATIVE HARDENER HARDENER

FIXING PRIMARY FUNCTION? PRIMARY FUNCTION? FIXING AGENT FIXING AGENT ACIDIFIER ACIDIFIER PRESERVATIVE PRESERVATIVE HARDENER HARDENER SOLVENT SOLVENT HYPORETENSION HYPORETENSION

THE PROCESSOR FEED TRAY FEED TRAY ENTRANCE ROLLER ASSEMBLY ENTRANCE ROLLER ASSEMBLY AUDIBLE SIGNAL AUDIBLE SIGNAL ACTIVATES REPLENISHMENT SYSTEM (CIRCULATORY SYSTEM) ACTIVATES REPLENISHMENT SYSTEM (CIRCULATORY SYSTEM) TRANSPORT ROLLERS TRANSPORT ROLLERS SQUEEGIE ASSEMBLY SQUEEGIE ASSEMBLY TURNAROUND ROLLER TURNAROUND ROLLER CROSSOVER ROLLER CROSSOVER ROLLER GUIDE PLATES GUIDE PLATES

MORE TERMS MICROSWITCH MICROSWITCH REPLENISHMENT REPLENISHMENT OXIDATION OXIDATION AERIAL/USE AERIAL/USE FILM ORIENTATION FILM ORIENTATION TEMPERATURE TEMPERATURE 93 DEGREES TO 95 DEGREES 93 DEGREES TO 95 DEGREES 50% HUMIDITY-DARKROOM 50% HUMIDITY-DARKROOM ARTIFACTS PGS ARTIFACTS PGS

DIGITAL ACQUISITION DYNAMIC RANGE =RANGE OF VISIBLE IMAGES DYNAMIC RANGE =RANGE OF VISIBLE IMAGES MATRIX AND PIXELS MATRIX AND PIXELS THE LARGER THE MATRIX THE SMALLER THE PIXEL SIZE THE LARGER THE MATRIX THE SMALLER THE PIXEL SIZE THE LARGER THE MATRIX THE GREATER THE NUMBER OF PIXELS THE LARGER THE MATRIX THE GREATER THE NUMBER OF PIXELS

DIGITAL ACQUISTION - CR IMAGING PLATE IS PLACED INTO A READER IMAGING PLATE IS PLACED INTO A READER INSIDER THE READER THE PLATE IS SCANNED BY A LASER WHICH RELEASES THE TRAPPED X-RAY ENERGY AS VISIBLE LIGHT INSIDER THE READER THE PLATE IS SCANNED BY A LASER WHICH RELEASES THE TRAPPED X-RAY ENERGY AS VISIBLE LIGHT THE PMT (PHOTOMULTIPLIER TUBE) COLLECTS, AMPLIFIES AND CONVERTS THE LIGHT INTO AN ELECTRICAL SIGNAL THE PMT (PHOTOMULTIPLIER TUBE) COLLECTS, AMPLIFIES AND CONVERTS THE LIGHT INTO AN ELECTRICAL SIGNAL

DIGITAL ACQUISTION - CR SIGNAL IS ANALYZED TO THE PREPROGRAMMED INFORMATION SIGNAL IS ANALYZED TO THE PREPROGRAMMED INFORMATION ELECTRIC SIGNAL IS CONVERTED FROM ANALOG DATA TO DIGITAL DATA ELECTRIC SIGNAL IS CONVERTED FROM ANALOG DATA TO DIGITAL DATA LASER SCANS PLATE TO ERASE THE PLATE THOROUGHLY FOR NEXT EXPOSURE LASER SCANS PLATE TO ERASE THE PLATE THOROUGHLY FOR NEXT EXPOSURE

DIGITAL ACQUISTION - DR CCD CCD FLAT PANEL FLAT PANEL INDIRECT CONVERSION DETECTORS INDIRECT CONVERSION DETECTORS DIRECT CONVERSION DETECTORS DIRECT CONVERSION DETECTORS

DIGITAL ACQUISTION – ADDITIONAL TERMS HISTOGRAM ALGORITHMS POST PROCESSING WINDOW LEVEL WINDOW WIDTH NOISE DICOM PACS