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Orion Architecture

Orion system represents a core DAQ library – collection of *.so shared libraries used for data acquisition.

Orion is based on a modular architecture and decouples functional blocks by providing independedt packages:

  • Front-end chip package provides classes and routines for chip configuration and command generation.

  • Data acquisition package contains row data decoders, chip specific scan engines and various loops implementation. This package provides raw scan data in JSON format.

  • Analysis package contains data processing algorithms and scan data analysis tools, which are completely detouched from the readout. Analysis tools proces raw scan data stored in JSON format into analysis results JSON files.

  • Plotting package is based on matplotlib python library and provides tools and routines to make plots based on raw scan data and analysis results provided in JSON format.

Analysis tools (as a part of the ITk QT work) are presented in the ITk DAQ Analysis package.

Libraries

Orion provides libraries with base functionality applicable for all chips:

  • itk – common routines used for the whole system,
  • fec – front-end chip related classes and interfaces,
  • daq – classes for data acquisition; contains decoders, scans, loops,
  • alg – algorithms for data processing,

and front-and specific routines and implementations for fec, daq and alg libraries:

  • for RD53B chip: fec-rd53b, daq-rd53b, alg-rd53b,
  • for Star chips: fec-star, daq-star, alg-star.

For each library <name> two files are provided:

  • lib<name>.so - a C++ shared library,
  • py<name>.so - corresponding python binding.

For example, for daq library of the rd53b chip, the following are added:

  • libdaq-rd53b.so – C++ shared library for DAQ,
  • pydaq-rd53b.so – corresponding python binding.