User Manual Part 2

94
2852 A EN 20070205
DRYSTAR AXYS
10 Calculate the average value of the densities from the five images. These values
represent operating levels, or aim values, for each density.
11 Record the respective aim (average) values as the ‘Operating levels’ on Charts
2A and 2B (‘Drystar AXYS Daily Density Control Chart’). Refer to “Quality Con-
trol Charts” on page 149.
The calculated ‘Operating levels’ should be as following:
12 These charts will be used for the daily quality test. For more information, refer
to “Performing the daily QC test for general radiography applications (DT 2 B
and DT 2 C)” on page 99.
Operating Level
Value
(according to IEC 1223-2-4 or better)
Low density 0,4 ± 0,05
Mid density 1,2 ± 0,15
High density 2,0 ± 0,2