Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

Present: Flemming, Alexei, Yuri, Gene, Tommy, and myself

== Hardware

— still working on two options (sets of readouts)

— these are for the 3D sensor

— need a non-magnetic 3D sensor but almost no options for that

— Bill is done with the survey device

— tested and has ~50 um accuracy

— various holes around TPC need to be cleaned (filled with corrosion or debris)

— work also proceeding on TPC electronics (power supply checks, etc)

== Electronics

— nothing new reported this week

== Software

— Two issues discussed

— embedding for Run18 was first

— offline cluster finder finds more clusters than online cluster finder

— was due to gain table

— issue has returned, Tommy is working on it

— Flemming agreed the problem looks to be related to the gain table based on plots shown in the software and computing meeting

— other issue is 7.7 GeV dE/dx 

— Rice group has found some deviation

— shift is thought to be due to muons from pion decays 

— Yuri working to improve dE/dx model

— need to use data to correct model

— ultimately would want to use integrated detector subsystem information to correct model

— Rice may have one or two more student that can contribute to this effort

— also 1 more student from Dubna who will work on PID issues

== AOB

— nothing new reported this week

Best Regards,

  Richard

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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