IMAGE QUALITY
15
Film/screen combinations
Mammography film and screens are made to provide high reso-
lution and high contrast. For normal mammography, screens with
the highest possible resolution should be used. Faster screens
can be used for magnification, to reduce the exposure time. The
resolution will be maintained through the small focal spot.
Cassettes and screens should be cleaned regularly, and you
should check your cassettes to ensure that the contact between
film and screen is the best possible.
It is important to keep all surfaces in the dark room clean
(wet wiping) to avoid dust in the cassettes.
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