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This is a filter module which implements skipping for the events which have too low signal in CsPad. filtering algorithm can be controlled trough the module parameter and/or parameters in calibration file. The name of the calibration file is "filter" and it will be searched in the standard calibration directories of the experiment.
Module configuration parameters:
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parameter | default value | description |
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| '' | string key used to locate uncalibrated data objects in event |
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"DetInfo(:Cspad)" |
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data source address | |
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"yes" |
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when set to "yes" if the module does not find CsPad data in an event then it skips event | |
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-1 |
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filtering mode, see below | |
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all 0 |
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list of parameters for filtering algorithm, up to 16 floating numbers |
Parameter mode defines where the filter get its parameters and how it works. If set to -1 (default) then it reads parameters and actual mode value from a calibration text file which should contain one integer number for mode and up to 16 floating point parameters. If parameter is set to 0 or if the value read from file is 0 then no filtering is done, all events are passed through. If mode is set to 1 (from parameter or file) then filter calculates the number of pixels above certain threshold. Filter expects two values in parameter array: threshold for pixel value and minimum number of pixels above threshold. If second parameter is negative then it's assumed to be a percentage of the full number of pixels.
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This module demonstrates of how to use the PixCoords2x1, PixCoordsQuad, and PixCoordsCSPad classes
in order to pre-calculate pixel coordinates, taking into account the calibration parameters.
Relevant images are produced in combination of the pixel coordinates with event data and saved in text files.
Module configuration parameters:
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parameter | default value | description |
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| "/reg/d/psdm/CXI/cxi35711/calib" |
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directory with calibration |
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file |
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"CsPad::CalibV1" |
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data type and group names |
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"CxiDs1.0:Cspad.0" |
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source of data |
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32 | run number for calibration file |
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32 | number of events before stop a job |
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false | on/off for potential selection filter |
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Module CSPadPixCoords::CSPadImageProducer
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- gets the pixel coordinates from PixCoords2x1, PixCoordsQuad, and PixCoordsCSPad classes,
- gets data from the event,
- produces the
ndarray<double,2>orImage2D<double>object with CSPad image for each event, - adds the image object in the event for processing in other modules.
Time consumed to fill the CSPad image array (currently 1750x1750) is measured to be about 40 msec/event on psana0105.
Module configuration parameters:
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parameter | default value | description |
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| directory with calibration files, by default it is set to .../<experiment>/calib |
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"CsPad::CalibV1" |
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calibration type and group names |
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"CxiDs1.0:Cspad.0" |
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source of data |
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| key for data processing stage |
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"image" |
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output key for image saved in event |
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true | on/off for tilt angle of 2x1-sections and quads. | |
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0 | verbosity:
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Remarks:
- By default the
keycorresponds to raw data. - If the
imgkeyis defined as "Image2D", the image is saved in the event as aCSPadPixCoords::Image2D<double>object, otherwise (by default) as andarray<double,2>object.
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