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radiation from the cassette back and cassette tray that is directed back toward the film
the tightly pressing of the intensifying screen against the film when the cassette is closed
silver salts of the halogen elements that are mixed with gelatin to form the film emulsion
the portion of the electromagnetic spectrum to which the the film is most sensitive
an s shaped curve that demonstraiong the the response of a film to a full range of exposure
base + fog density
the measue of light absorbed by the film base plus any fog exposure to the film before processing
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