Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

Present: Alexei, Jim, Frank, Gene, Yuri, and myself

== Hardware

— Access last Wednesday

— worked on east laser, replacing optics

— needed two mirrors, mirrors ordered

— should be able to install next Wednesday

— West laser is in reasonable shape

— Gas system is working okay

— sector 4-5 needs investigation due to trip (HV module?)

— will try next Wednesday if there is time

— trying to stabilize drift velocity by adjusting methane content

== Electronics

— the usual RDO and FEE outages occurring, nothing unexpected

— Tonko working on fixing RDOs whenever time is available

== Software

— TPC SC

— Run 25 half field data calibration

— person identified for this, Baoshan

— dB table needs to use same RICH scalar for both FF and HF fields

— will have optimal calibrations for production 

— Run 24 pp200 low-lumi SC calibration is done for all that is possible

— started calibration production, almost done

— about 30 files left, but they are using several days each

— skipping 1st 24 hours for now

— Geometry for support cone

— see link Yuri will send to list

— revision of geometry is complete

— there is qualitative agreement between reco vertices and radiation lengths

— Will revisit GMT geometry next

== AOB

— R. Witt will be out of town next week

— Next week’s meeting 7/14/25, will be held if needed

— TBD around mid-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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