Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]


Present: Alexei, Tommy, Gene, Jim, Yuri, Mathias, Daniel, and myself


== Hardware
   — working with magnetometer
   — some work for MTD gas
   — pressure jumped about 2 mbar today due to thunderstorm
   — TPC gas system responded very well
   — laser system is functioning well
   — some lost connection to GUI for TPC, but gating grid appears to have been on all the time
   — some language and instructions will be added to handle this situation should it occur in the future
       — put the system in Standby (Pedestal mode)
   

== Electronics
   — system is stable and running well
   — 4 RDOs out in the iTPC
       — 9.7, 9.8, 10.7, and 10.8


== Software
   — Run 22 SC
       — calibration production is nearly finished, 3338 jobs total
           — multiple DAQ files from a single run
           — typical jobs take more than 3 days
           — about 50 jobs have continued for 7 days and stopped (queue limitation)
           — may need other jobs from that fill, need to check
           — move to pass2 in next week or so
   — Fixed target sets from Run 22
           — event-by-event T0
           — some flaw in calibration for some events (about 10%)
           — a zero TAC is inadvertently used
           — used TAC comes from west side, so need to really only use those from east
           — also affects about 10%
           — seems to correlate with track breaking that is seen by fixed target analyses
           — have other methods to determine T0
           — Mathias presented work he has done looking at track breaking in fixed target data
   — Alignment work is still underway
           
   
== AOB
   — Discussion of GMT
       — Nikolai took over as detector expert after Dick passed
       — the subsystem is actually running with one of the minbias-like triggers that reads-out the TPC
           — runs at 50 Hz
       — need someone identified to check the usual online plots
           — determine if it is taking good data
           — pursue use of the data
   

Best Regards,
 Richard

Sent from my iPad
—
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela

Sent from my iPad

-- 
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela

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 Richard Witt, Professor of Physics     Phone (USNA): 410-293-6675
    United States Naval Academy         Email: witt AT usna.edu
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