NOM data
Slope errors are typically measured at many points along the whole optical area of a mirror or crystal. Some typical data is shown below for a 1m long plano mirror, with 1200 measurements averaging 30 points per position.
NOM slope error data
NOM height error data
Comparison of Crystal Scientific NOM
and Diamond Light Source NOM
To check the accuracy of our NOM we have compared it against the NOM at the Diamond Light Source. This graph shows the correspondence between the two systems when analysing a KB mirror.