AGFA DRY 3.4 User Manual page 109

3. Record these values as measured distances A and B on Chart 4 ('Geometric
Consistency Control Chart').
4. Compare the measured A and B dimensions with the reference dimension
values, A
The differences between the measured dimensions of A and B and the
reference values A ref and B ref should be less than or equal to 1.0%.
5. Check for image distortion.
6. Calculate the aspect ratio by dividing A by B.
The result must be 1 +/- 0.01
Related Links
Establishing the image geometry reference values for mammography application
on page 103
Charts for mammography QC
DRY 3.4 | Advanced Operation (key-operator mode) | 109
WARNING:
Make sure to measure distance A from the left edge of
the left line to the right edge of the right line and
distance B from the upper edge of the upper line to the
lower edge of the lower line.
We strongly recommend using a 30 cm (12-inch) machinist
scale with 0.5 mm divisions (1/64 inch).
and B on Chart 4 ('Geometric Consistency Control Chart').
ref ref
WARNING:
If the image size or distortion values are outside of limits,
contact your local service organization to resolve the
problem.
on page 135
2602A EN 20191018 0826