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You can also analyze xtc data with the offline tools, and myana and pyana are made for this. But you also have the option of converting your experiments' xtc files into hdf5 files. hdf5 is will be the standard offline LCLS data format, and tools are under development for analyzing these files. More about data formats and where to find the experiment data files, see Analysis Workbook. Data Formats
The pdsdata library
See also myana and pdsdata Reference Manual.
Myana uses the pdsdata library to access the datagrams in the xtc files. pds = photon data system. In your analysis directory you'll find it in release/pdsdata/. The header files are in the top level directories of each package, and the implementation files are in the src directory of each package. Here's very briefly what the library contains (more information here):
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package | description |
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ipimb | Intensity position, intensity monitor board (IPIMB)
Four diodes positioned around the beam measure scattered X-rays. Based on the output voltage from the four sensors, we can determine pulse intensity and position of the beam. Note, that the lusi package contains methods to get feature-extracted / background subtracted output from the IPIMB. | encoder | SXR SLE Info (Laser Mirror Position Encoder) | pnCCD | for device used by the CAMP collaboration | acqiris | DAQ interface to the aquiris digitizer hardware. Waveform data. | camera | camera frames, configurations, feature extractions process | evr | EVent Receiver (event code, beam code?) | opal1k | for Opal1000 camera | pulnix | for Pulnix TM6740CL monochrome camera | control | utility for DAQ control, PV (process variable) control and monitoring | xtc | This package defines all the datagrams for the xtc file. | epics | DAQ interface to epics (process variables (PV)) | bld | DAQ interface to BeamLine Data, e.g. FeeGasDetEnergy, EBeam, PhaseCavity | princeton | DAQ interface to the Princeton camera | fccd | LBNL/ANL Fast CCD monochrome camera | cspad | CXI CsPad detector | lusi | LCLS Ultrafast Science Instruments Configs for diode, ipm, pim. | app | Xtc and Epics readers |
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