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Mammographic Film/Screen
Contact Test Tool
GAMMEX 157A |
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Film/Screen contact can have a significant influence on image quality. Today’s mammography film/screen systems have
higher resolution than diagnostic radiography x-ray systems and require test tools with finer detail. Regular testing with the
Gammex 157A detects problems and artifacts early. Use of the tool and the evaluation of the resulting images is simple.
Areas of poor screen contact appear darker than areas of good contact. Any dark areas greater than 1 cm should be
investigated and corrective action taken. Gammex recommends testing cassettes every six months or when new or repaired
cassettes are put into service. |
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SPECIFICATIONS |
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Screen Size. . . . . 24x30 cm (9.4x11.8 in)
Mesh . . . . . . . . . #40 Mesh - Copper
Size. . . . . . . . . . 25.8x31.5 cm (10.2x12.4 in)
Weight. . . . . . . . 0.4 kg (0.9 lbs)
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