preprocessing - tasks

Preprocessing Tasks

List of preprocessing tasks which should be selectable:

• Set-up the directory structure
• Definition of the scan
• Type of scan
• Sweepscan/oscscan/other?
• Angular range
• Step
• Integration time
• Test image(s)
• Detector(s) and detector parameters
• Pydis not supported
• External parameters (powders)
• Temperature loop
• ETMT
• Etc.
• Dark Generation
• Geometrical Calibration Generation (with standard, so not in loop)
• Dark Subtraction
• Flood Correction
• Image Retaking/Correlation
• Blob Finding/characterization
• Location (with spline correction)
• Intensity
• Borders
• Shape characteristics
• Blob Extraction
• Storage => ?
• Image statistics
• Number of spots (=> number of crystals)
• Rocking widths
• Number of overflows
• Average intensity
• Azimuthal Integration (powders)
• 1-d (software) rebinning (powders)
• Frelon fast on-chip rebinning
• Peak Fitting (powders, generally)
• Also knife edges, etc.
• Archiving of state (geometry, correction files)
• Data Compression

Compound_scans?

Compound scans

Should be possible to build Compound scan sequences

• vs. external parameters, i.e., rotation/heat/rotation, etc.
• Of different motors, i.e. beamline alignement
• Output, (i.e., peak positions) must be subsequent input
• Supposes reading i.e. diodes
• Easy to build sequences

Real-Time_Displays?

Real-Time Displays

• Image series statistics (Blobs)
• Number of spots
• Rocking widths
• Average Intensity
• Number of overflows
• d-spacing clusters (i.e., phase changes)
• Evolution of a peak/peaks (powder)
• Displays of historical (compound scans)

Outputs_could_be?

Outputs could be

• Image series statistics
• Blob information
• (corrected) position
• Insensity
• Shape
• Information containing part of the data/reduced data
• Series of blobs
• Powder pattern(s)
• Per image, or summed (mean-median)

Known_software?

Known software

• Dark Generation

  image_math, ID19
  

• Geometrical Calibration Generation

  Fit2d
  

• Dark Subtraction

  Fit2d, image_math, ID19
  

• Flood Correction

  Fit2d, image_math, ID19
  

• Blob finding/characterization

  Peaksearch.py, ID19
  

• Blob Extraction/archiving

  ID19 software?
  

• Azimuthal integration (powder)

  Fit2d, cake, jon(?)
  

• Image Statistics

  Henning O.?
  

• Peak finding/fitting

  Newplot, jfit, many others
  

In the first case, concentrate on the multi-crystal 2d detector case
getting started - users