Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

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

== Hardware

— Tonko finished yesterday

— much easier for Alexei to work on holes now

— expects to finish cleaning today or tomorrow

— needs to invite survey group to make extensive plan

— moving scaffolds, etc.

— need to make 3D tool to move fiber

— Flemming asked about water leak

— exact location has yet to be identified

— Robert Pak was notified (instead of Alexei?)

— CID requested some parts to fix leak properly

— Alexei finished cleaning but would like to work on whole inner sector 

— last 2 RDOs will shift a little bit (approximately 0.5 inch)

== Electronics

— talked to Christian on Thursday, some issues remain

— Tonko switched off all electronics yesterday

— however, this morning sector 15 (or 16 or 17 was found to be on)

== Software

— Irakli presents alignment work on ‘21 cosmics data

— previously kept outer sectors fixed and aligns inner sectors to them

— some issues found so now reversed procedure (fix inner and align outer)

— related to lack of knowledge about exact position of pad plane on outer sector

— we have a good survey of pad plane position on sector for inner (iTPC) sectors 

— so, inner sectors are now being used as reference instead of outer

— deltaZ and deltaY converge quickly, deltaX is slower but seems to be converging with continued iterations

— iterations will continue

— supersectors still to come

— Gene on production priorities

— Run20 11.5 and 9.2, then 200GeV d+Au from Run21(SC and GL need to be finished)

— next comes 200 GeV O+O (has 2 field settings)

— need to understand static distortion and alignment issues beforehand

— working groups want a test production anyway

— will finish SC and GL for O+O

— then will move forward with preview production with whatever corrections state exists at the time

— Tommy working on automatic pull of histograms for QA Fast Offline analysis

— finishing work on differences in cluster finding results in simulation and production

— Yuri continuing iteration on constant dE/dx work (each needs a couple days)

— Guannan work on tuning TpcRS

— some discrepancy in clusters noticed by Xianglei 

— needs to be understood

== 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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