Quick Start!
Go to the Quick Start Guide!
Automatic, One-Click Calibration
For images which contain the beam centre and multiple complete rings and have a detector tilt of less than 10 degrees - go for the Quick Start Guide
If Auto calibration doesn't work for your data, try Manual Calibration.
Manual Calibration
For images where the beam centre is off the detector, there are few complete rings or there is a high tilt, try Manual Calibration (requires starting guess for energy and experimental geometry)
Theory
There are two different methods used in DAWN to calibrate powder diffraction images, Ellipse Parameter Calibration and Point Parameter Calibration. Here is a quick description of the difference: