For this step in the calibration process, you enter the values of momentum transfer q, Bragg angle 2theta, or d-spacing d for the rings that you will use for calibration. If you have read in a calibration file, they will already be entered in editable boxes; if not, default values will be entered. For the calibration to work properly you need rings, not sharp peaks from single crystals or fiber diffraction patterns, so your calibration material should be a powder. Type the parameter appropriate for each ring into one of the boxes labeled Q, 2Theta, or D.
Click Next when you are ready to go on to the next step, Back to return to the previous step, or Restore to abort the entire process.