Term
polyester
blue tinted
reduces eye strain
absorbs very little water |
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made of gelatin and photosensitive silver halide crystals
interaction of light and xray photons puts latent image on the film |
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Term
makes of 95-98% of silver hailde crystals
suspended in emulsion |
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Term
layer of hard protective gelatin to prevent the soft emulsion underneath from being damaged
nearly impossible to tear |
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| used when fine detail is critical to the diagnostic quality of the image |
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Definition
| direct exposure/ nonscreen film |
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| available in a wide variety of speeds, contrast ranges, latitudes, and resolutions |
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| most require single emulsion film |
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Definition
| special application films |
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Term
type of special application film
provides an exact image of the original by using actual negatives
UV light |
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Definition
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Term
type of special application film
70 mm and 105 mm roll of film is used
similar to cineradiography film
sensitive to green light |
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Term
single emulsion film
exposed with a single radiographic intensifying screen
uses green emitting terbiumdoped gadolinium oxysulfide screens with green sensitive film |
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Definition
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uses digital electronic signal from an imaging device
is silver halide film that has been sensitized to red light
must be handled in total darkness |
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Term
contrast
speed
latitude
recorded detail |
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Definition
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| film emulsion with larger silver halide crystals |
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Definition
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| film emulsion that contains smaller silver halide grains |
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Definition
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| sensitivity of screen film combination to xrays and light |
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Definition
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Term
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Definition
thickness of layer of phosphor
crystal/phosphor size
efficiency of crystals/phosphor |
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Term
| ___ is a function of the concentration and the total number of silver halide crystals |
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Definition
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| produces twice the speed that could be attained by single emulsion film |
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Definition
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immersion time
developer solution temp
chemical activity
ambient conditions |
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| speed is most affected by |
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Definition
| developer solution temperature |
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| higher temperature produces greater ___ in film |
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| film speed is affected when the ____ has not formed properly |
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Definition
| the margin of error in technical factors |
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| image receptors with wide latitude have ___ gray scale, ___ contrast image |
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Definition
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| latitude and contrast are _____ proportional |
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Definition
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Term
the degree of sharpness of structural lines on a radiograph
spatial resolution |
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Definition
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| smaller phosphor crystals give ___ detail |
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Definition
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| thin emulsion give ___ detail |
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Definition
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| lower phosphor concentration gives ___ detail |
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Definition
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| films should be stored at temperatures of ___ degrees and below |
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| humidity must be maintained between ___ and ___ percent |
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| high humidity causes ____ |
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