FILM STORAGE
FILM CHEMISTRY
DIGITAL SYSTEMS
COMPUTER TERMS
IMAGE EVALUATION CRITERIA
100
Static, wrinkles, edge damage
What are film storage artifacts?
100
Latent image
What is the exposed, but undeveloped image on a film called?
100
Post-processing
How can a radiographer change the contrast and density of a CR image after it is processed?
100
Picture Archival Communication System
What does PACS stand for?
100
Magnification, OID, SID
What factors can cause an image to become distorted?
200
Red light
What color is the safelight in a darkroom?
200
Silver
What is the most vital metal used in film based systems?
200
The varied shades of gray and their values.
What is grayscale rendition, or Look-Up-Table?
200
DICOM
What is the acronym for Digital Imaging and Communications in Medicine?
200
Density
What can be controlled by mAs, distance, or film-screen combination?
300
Heat, moisture, light
What can cause damage to unexposed film?
300
Wash
What removes chemicals toward the end of the developing process?
300
Dead Pixel, Ghost Image, Printer Distortion, & Readout problems
What are system malfunctions?
300
Inappropriate documentation, Lost images, Mismatched images, & Corrupt data
What are major concerns in respect to workflow?
300
Grainy or uneven image
What is noise?
400
50 degrees Fahrenheit
What is the ideal temperature for film storage?
400
Fixer
What stops the development of the image, and removes the remaining unexposed silver?
400
Edge enhancement
What sharpens and increases contrast at the outer borders of pixels.
400
Compression
How does a large image become "shrunk-down" to create more computer storage space?
400
Age, chemicals, unwanted radiation, temperature irregularities, and exposure to light can cause this problem.
What is fog?
500
50-60%
What is the ideal humidity for film storage?
500
Recirculation
What agitates developer solution and stabilizes temperature?
500
Pixel size
What primarily effects spatial resolution in Computed radiography?
500
Digital Mammography
What form of digital image storage takes up the most space?
500
Mottle, low contrast
What are forms of image degradation?
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