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SourceIDV2.md

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SourceIDV2.md

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SourceID v2

This document describes the format of the SourceID struct, version 2.

Description of SourceID

Version 2 of SourceID consists of two 32-bit words:

  1. Version (upper 16 bits) / Subsystem (lower 16 bits)
  2. Element ID

Notes

Since SourceID is a direct successor of the old GeoID struct, its versioning picks up where GeoID left off at version 1. Unlike GeoID which was intended to represent a specific region of the detector, SourceID is a generalized concept of where a chunk of data used in the DAQ comes from (e.g., it could be produced by a DAQ application rather than a part of the detector).