Compton Counting Mode DAQ

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CREX Main << HOW TOs

This page is intended for CREX shift crew and instructs the correct usage of the compton counting mode DAQ.

Running the DAQ

Start a new run every 2 hours.

Open CODA

  • Login to the compton2 machine (user: compton)
  • Type startCoda in the terminal
    • This will execute each CODA component in a separate xterm, one of them being the run control gui (rcGui)
  • From the rcGui menu bar click Control -> Connect
  • Check that the CODA run parameter 'configuration' is 'vtpCompton'
    • If it is not the correct configuration
      • click on Configurations -> Coda Config
      • a small window will pop-up with a list of coda configurations, choose 'vtpCompton' and click ok
    • If it is the correct configuration
      • click on the Configure button located just below the menu bar
  • Next click Download.
  • The bottom left of the rcGui window will show the state of vtpROC, PEB1, and ROC1.

Start a Run

  • Make sure the CODA run parameter 'configuration' is 'vtpCompton'
  • Click on the Start button below the rcGui menu bar
    • This will increment the run number
    • An autolog with run information will be added to the HACOMPTON logbook
  • When the run has started the state of each component will read 'active'

Stop a Run

  • Click on the End button
  • When the run has ended the state of each component with read 'ended'.