Meetings
HPTPC DAQ Agenda
- Summary of DAQ systems
- TPC (Patrick/Jen)
- TOF (Alexander)
- Synchronising TOF and TPC data
- What input does each DAQ require?
- CERN spill signal is a TTL pulse with a user configurable delay ( BeamControl.pdf)
- What delay is needed by TOF and TPC
- Can we network TOF and TPC machines into a common local network? What OS are each DAQ machine using?
- Slow control and monitoring
- Output data
- Data-taking mode : runs of fixed time period, or individual spills?
- How do individual data fragments get timestamped within the output structure?
- What format is the timestamp? Local unix time? Asynchronous run/spill identifiers?
- How do we correlate the outputs of the two detectors (i.e. suppose I have a particular TPC image. How do I findthe right TOF information?
- What is the dataflow from DAQ to Analysis?
- What stages of pre-processing of the raw data will be needed
- Does the code to do this exist and if so where will this processing happen (and by whom)?
- Hardware requirements for the testbeam
- What equipment will each system send to CERN
- What does each system need in terms of ancillary systems such as network, common storage, processing space,...
- Where is the data (both TOF and TPC) stored in the long-term?