How to increase the number of conics found by NODIRAX

After a successful run of NODIRAX, the program should end with a list of at least 40-50 ndlvs. All major conics of the observed pattern should be found by the program. If the program either did not find enough conics, and/or missed some main conics, try the following steps (in order of importance):

• Check the beam center. See the previous section.
• Check the crystal-detector distance.
• Check the number of cycles specified by ncycle. Increase the more of cycles (3).
• Reduce the minimum number of spots that the final conics should have, as specified by mincon.
• Pick more spots using the peak-search algorithm of the xdisp program.
• Reduce the number of steps and/or the step size in the process of expanding and combining planes, as specified by nrspot.
• Reduce the value of qmin. Try values like 0.2, 0.1, 0.05 and 0.01.
• Increase the expected root-mean-square distance between the predicted and refined spot positions, using sigma. We normally use values like 0.2 for FUJI image plates and 0.1 for the ESRF CCD detector.