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• Access to the CSPad geometry calibration parameters are provided by the methods of the classes CalibParsDefault, CalibPars, and CalibParsEvaluated. It is assumed that the geometry calibration files, are available (see CSPad alignmentAlignment) and located in the user-specified directory, otherwise default parameters will be used, which would not represent correctly the specific detector geometry.

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CSPAD geometry is varying for different detectors, experiments, or even runs. In order to keep track on all these variations LCLS offline has a simple calibration data base, which works as explained in CSPad alignmentAlignment. In order to get correct CSPAD alignment parameters the pass to the calibration directory should be specified like this:

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In order to get an image of intensity the weights array needs to be provided.

References

• CSPad alignmentAlignment
• Psana CSPad Geometry
• Package CSPadPixCoords for Psana