Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

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

== Hardware

— working on west laser

— PCB board was changed but didn’t work properly

— can use board with external relay (but relay failed)

— have driver to run UV crystal

— will finish alignment this week

== Electronics

— Tim going through list from Tonko

— a couple power cables have been fixed

— still many fuses on FEEs that must be fixed

== Software

— continuing to meet with Richard to work on SC calibrations ‘

— Run 21 FXT dE/dx calibration is done

— see https://drupal.star.bnl.gov/STAR/blog/fisyak/Runs-XXI-fixed-Target-dEdx-calibration-has-been-done

== AOB

— Jim’s thoughts on sector alignment to beamline

— used to assume the sectors were solid body rigid objects

— actually need 5 parameters, 2 additional to account for stretches of pad plane

— for iTPC, Jim accounted for all 5

— perhaps we should be doing the same 5 parameter procedure for alignment work?

— allow stretching for old outer sectors as well

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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