Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

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

== Hardware

— power drop on Monday due to strong winds

— power was restored ~11pm

— TPC was okay after water restored

— Glassman operates okay

— front display now working correctly (after power drop)(?)

— laser inspection today

— no problems found

— oxygen sensors to be installed soon

— new power supply was ordered last summer 

— now in transit from Germany

— will serve as our spare

— with additional existing Glassman will have complete backup HV system

== Electronics

— talked to Tim Tuesday

— seem to have one remaining RDO in the TPC (needs replacement connector)

— otherwise are done

== Software

— continuing work on SC in Run 22

— DCA distribution is tightening

— so calibration is likely converging in recent iterations

— working on pass 7

— want to now compare fill-by-fill calibration (looks like it’s needed)

— will scale calibration runs to “production” mode

— alignment work continuing

— struggling to get convergence

— Tommy’s evaluation of TPCRS for 2023 dataset

— comparison needs some tuning

== AOB

— Gene showed a plot of local hit coordinate (colored by drift distance) from pp500

— long drift distance hits are more distorted (SC)

— r-phi cut on hits causes losses on the inner most pad rows

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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