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CrystFEL unit cell file version 1.0
lattice_type = tetragonal
centering = P
unique_axis = c
a = 77.05 A
b = 77.05 A
c = 37.21 A
al = 90 deg
be = 90 deg
ga = 90 deg

You will noticed that the reindexed results will match the unit cell parameters provided.

Assume that we do not know the detector distance from the interaction point, we can use the diffraction geometry panel to tweak this distance.

• In the diffraction geometry panel, set "Detector distance" to 156mm. Try incrementing this distance in 1mm step till the unit cell parameters are as close as possible to lys.cell.
  
  

Once you are happy with the indexing results, let's launch an indexing jobs on the cluster. 

Psocake Layout

1. Image Panel / Image Scroll
2. Mouse Panel
3. Experiment Parameters
4. Image Control
5. Diffraction Geometry / ROI Histogram / Small Data
6. Peak Finder / Hit Finder / Indexing / Mask Panel

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