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Dark files were obtained and deployed using Calibration Management Tool

exp=cxif5315:run=147  dark average, rms, and average difference between runs 147-198:

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Geometry alignment

In accordance with CSPAD Alignment, use geometry file:

/reg/g/psdm/detector/alignment/cspad/calib-cxi-ds2-2015-01-20/calib/CsPad::CalibV1/CxiDs2.0:Cspad.0/geometry/1-end.data

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Tuning of geometry can be done with  Detector alignment tool running command:

Code Block
geo -i cspad-ndarr-ave-cxif5315-r0169.dat -g geo-cxif5315-r0169-swap-tuned.data

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Using image array in cspad-ndarr-max-cxif5315-r0169.dat and geometry file geo-cxif5315-r0169-swap-tuned.data, one can generate masks using the Mask Editor embedded in Calibration Manager.

Run command calibman, select tab ROI and performing all steps of the mask creation procedure, one can draw ROI on image, create the mask for this image, convert this mask to ndarray, and use this ndarray for data processing. This ndarray can be used later for image reconstruction with the same geometry file.

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Peak finding algorithm is based on psana module ImgAlgos::NDArrDropletFinder with preceded CSPAD ndarray producer CSPadPixCoords::CSPadNDArrProducer and its calibration ImgAlgos::NDArrCalib. Detector geometry information is provided by the module ImgAlgos::PixCoordsProducer. Configuration file  psana-cxif5315-r0169-cspad-ds2-NDArrDropletFinder.cfg (download)  defines parameters for these modules. Two instances of modules are used in order to process two region of interests for Arc and Equator.

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Latest version of packages

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On 2015-04-16:

Release ana-0.14.2 is up to date.

Until ana-current is ana-0.14.1, one has to use sit_setup script with release tag parameter:

Code Block
sit_setup ana-0.14.2

 

 

External files

In order to run examples create directory with some arbitrary name my_analysis and work directory in it:1 in the local release directory

Code Block
addpkg CalibManager   HEAD
addpkg CorAna         HEAD
addpkg ImgAlgos       HEAD
addpkg PSCalib        HEAD
addpkg pyimgalgos     HEAD

External files

mkdir my_analysis
mkdir my_analysis/work
cd    my_analysis
sit_setup ana-0.14.2

Download files in my_analysis directory:

Configuration script expects a few files in the local directory work/; two files with masks and file with a shape of background needs to be downloaded in the my_analysis/work directory:

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  • Peak finder parameters - all parameters in the peak finder are set without optimization. They need to be tuned in two places;
    1.  in the configuration file for two modules ImgAlgos.NDArrDropletFinder(:Arc/:Equ), and
    2.  in the python script in calls of peaks_filter(...) method.
  • ROI for peakfinder is defined by combination of two mechanisms;
    1. mask - ndarray with values 1/0. Pixels masked by "0", are ignored.
    2. a set of rectangular windows on sensors, defined by the parameter windows in module ImgAlgos::NDArrDropletFinder.
  • Peak finder parameters need to be optimized!

References