Parity feedback and Analysis Minder

How to Run Feedback - with Analysis Minder GUI

• From the CODA session's "startcoda" command, a grey "PREX Analyzer Control Tool" should appear
  • If not then type "restartMinder" from the command line to get a fresh copy
• From this gui you can find the Feedback anaylzer control buttons in the top left portion
  • Start a new feedback instance with the "Launch Feedback RunForever" button
  • Also open the feedback log to visually watch the feedback engine successfully connect to our data stream
  • Once "good" beam is available the feedback engine should make corrections every so often for Halls A and C
  • There are also EPICS strip charts saved in the CREX LivePlot folder that you can monitor the success of the feedback convergence with

How to Run Feedback - manually, with no Analysis Minder GUI

• Make sure Coda is running

• You need to be logged in apar account on adqa1:

  •  ssh apar@adaq1 

• Do gojapan

• Go to directory:

  •  cd /adaqfs/home/apar/PREX/japan_feedback/ 

• Run feedback code:

  •  ./feedback_ana 

• Also,make sure to change the event cut parameter file for appropriate current cuts(If the current is 50ua do 45uA current cut), To change that file

• • 1.Go to directory:

    •  cd /adaqfs/home/apar/PREX/japan_feedback/Parity/prminput 

• • 2.Change, bcm_an_ds3 cut

    •  prexCH_beamline_eventcuts.9999990.map 

• Feedback will automatically run

• In order to quit Feedback

  •  control+c 

    to crash out of the feedback