Motivation
- 2012-09-13 14:00 - Mtg with Ryan Coffee, Josef Frisch, Nick Hartmann
- Would like to have psana application to process xppi0412 data
Psana configuration file to get image:
[psana] files = \ /reg/d/psdm/xpp/<experiment>/xtc/<file-1>.xtc \ /reg/d/psdm/xpp/<experiment>/xtc/<file-2>.xtc \ ... /reg/d/psdm/xpp/<experiment>/xtc/<file-N>.xtc modules = \ ImgAlgos.CameraImageProducer \ ImgAlgos.SaveImageInFile # psana_examples.DumpOpal1k \ events = 3 [ImgAlgos.CameraImageProducer] source = DetInfo(:Opal1000) key_in = key_out = img subtract_offset = true print_bits = 15 [ImgAlgos.SaveImageInFile] source = DetInfo(:Opal1000) key = img fname = img-spectra saveAll = true #eventSave = 1
Project of analysis-specific modules
Module producing spectra
Functionality
- Define and cut the spectral regions for signal and reference band.
- Integrate in columns and evaluate two 1024-bin spectra, fs and fr, and their relative difference r= 2(fs-fr)/(fs+fr).
- Put 3 spectra in the event as
ndarray<double,2>
object. - Save spectra in the text file, 1024 x 3 lines of float numbers, if necessary.
Module parameters
- source
- key_in
- key_out
- Signal band Y-center
- Signal band width
- Signal band tilt angle
- Reference band Y-center
- Reference band width
- Reference band tilt angle
- Output file name (text format, 1024 x 3 lines of float numbers). If specified, then the file is saved for all selected events.
Module example for analysis of spectra
Functionality
- get the
ndarray<double,2>
object from the event. - do iteration over vectors and print elements for example.
Then users extend this module functionality depending on their goal...
Module parameters
- source
- key_in
- other parameters for analysis or accumulation of statistics etc.
Overview
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