MODEL 157A MAMMOGRAPHIC FILM/SCREEN CONTACT TEST TOOL

Mammographic Film/Screen Contact Test Tool Model 157A
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.
SPECIFICATIONS   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)