CountingDaq 240315

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Meeting information

 Meeting time:  1:00pm Eastern
   
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Agenda

• Activity updates
  • Update on the DAQ work space in the test lab.
• General discussion

Minutes

Recording on Zoom: https://jlab-org.zoomgov.com/rec/share/TJcs38L9g5u8D8BW64cCME02phmW-irxQb0BifEWrk9DYIF07QoMO0Di-70rQn9w.0WjEjQd7Bm3LgaUf?startTime=1710521112000

Participants: S. Malace, P. King, R. Michaels, D. Armstrong, S. Chatterjee, B. Blaikie, A. Sen, S. Regmi, B. Moffit, M. Gericke, D. McNulty, H. Liu

• Activity updates
  • Status of the DAQ workspace in the test lab
    • The space has been cleaned up. There is about a 15'x20' space.
    • Bob says the first things that will be set-up in the test lab will be Hanjie's polarimeter work, and Bob's digital beam monitor tests
  • Simona
    • Worked on single photoelectron test for the pion detector prototype
    • The pion detectors are not using the PMTs that we would use for the experiment. These were use in the pion detector pre-prototype tested at Mainz. They used a commercial base.
    • PMT signal is run through a long cable (roughly 75ft) to spread the pulse across several FADC samples. Want to also check it with a short cable to verify the integrals is the same.
    • Plans to switch this to use a VTP-based trigger next week
    • Running the FADC in sample mode (mode 1) and doing the integrals in analysis
    • Using a pulsed LED as the SPE source for the PMT. Ran with three different HV settings and several settings of the LED drive voltage.