Question
What is the correct number of chambers for symmetry and flatness tests for myQA Daily?
Answer
For symmetry and flatness measurements/tests the following number of chambers are used:
- Field size of 10 cm × 10 cm: 25 chambers.
- Field size of 20 cm × 20 cm: 61 chambers.
Illustration of the chambers used for symmetry and flatness measurements/tests (highlighted with purple boxes or blue circles); left: for 10 cm × 10 cm field (25 chambers); right: for 20 cm × 20 cm (61 chambers).
This will be corrected in the User's Guide for myQA Daily software versions newer than 1.3.