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Detector data - image versus raw data

<I will add an example picture where you can see the effect of going from 3d to 2-d space

One time processing versus psana use (standard smalldata workflow)

A typical pattern in hutches that take a data usually at 120 Hz rates is to process data once and use the results to do further analysis. Reducing the '3d' detector data into a q-phi space is such an example as are photon finding. Reading & calibrating the detector image can be CPU intensive as can be detailed photon finding. We typically recommend doing this step once, saving the results in an hdf5 file and do further analysis (e.g. normalizing with i0 detectors,...) on this files.