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A short tutorial on pyana and python analysis with examples for/from XPP experimentsquick walk-through of the tools that exist for analysis of xtc files with python.
The main focus is on pyana, and the examples are from and for XPP primarily,
but may be useful examples to other experiments too.

Table of Contents

The Basics

Python

http://docs.python.org/tutorial/Image Added

Pyana

Analysis Workbook. Python-based Analysis

Exploring an xtc file

pyxtcreader

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 pyxtcreader -h
usage: pyxtcreader [options] xtc-files ...

options:
  -h, --help            show this help message and exit
  -v, --verbose
  -l L1_OFFSET, --l1-offset=L1_OFFSET

Loops through the xtc datagrams and dumps info to screen. I recommend piping it to 'less'.

xtcscanner

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xtcscanner -h
usage: xtcscanner [options] xtc-files ...

options:
  -h, --help            show this help message and exit
  -n NDATAGRAMS, --ndatagrams=NDATAGRAMS
  -v, --verbose
  -l L1_OFFSET, --l1-offset=L1_OFFSET
  -e, --epics

Similar to pyxtcreader in that it loops throug xtc datagrams, but doesn't print to screen. Internally counts the datatypes it finds, and at the end dumps a summary only. Optinally prints out epics information (default no).

Example output:

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xtcscanner -n 200 /reg/d/psdm/AMO/amo01509/xtc/e8-r0094-s0*

Scanning....
Start parsing files:
['/reg/d/psdm/AMO/amo01509/xtc/e8-r0094-s00-c00.xtc', '/reg/d/psdm/AMO/amo01509/xtc/e8-r0094-s01-c00.xtc']
  201 datagrams read in 0.070000 s .   .   .   .   .   .   .
-------------------------------------------------------------
XtcScanner information:
  - 1 calibration cycles.
  - Events per calib cycle:
   [197]

Information from  0  control channels found:
Information from  9  devices found
                      BldInfo:EBeam:             EBeamBld (197)
            BldInfo:FEEGasDetEnergy:             FEEGasDetEnergy (197)
        DetInfo:AmoETof-0|Acqiris-0:  (5 ch)     AcqConfig_V1 (1)   AcqWaveform_V1 (197)
      DetInfo:AmoGasdet-0|Acqiris-0:  (2 ch)     AcqConfig_V1 (1)   AcqWaveform_V1 (197)
        DetInfo:AmoITof-0|Acqiris-0:  (1 ch)     AcqConfig_V1 (1)   AcqWaveform_V1 (197)
        DetInfo:AmoMbes-0|Acqiris-0:  (1 ch)     AcqConfig_V1 (1)   AcqWaveform_V1 (197)
     DetInfo:EpicsArch-0|NoDevice-0:             Epics_V1 (688)
         DetInfo:NoDetector-0|Evr-0:             EvrConfig_V2 (1)
                          ProcInfo::             RunControlConfig_V1 (11)
XtcScanner is done!
-------------------------------------------------------------

xtcexplorer

XTC Explorer - GUI interface that builds pyana modules for you.

Extracting the data with pyana, some examples

...

Non-interactive batch analysis

XTC Explorer