Star-tpc-l mailing list

[Richard Witt <witt AT usna.edu>]

Present: Alexei, Flemming, Jim, Yuri, Gene, and myself == Hardware — high voltage has been checked — some issues with LeCroy power supply — in time since shutdown, maintained low argon flow — yesterday tested argon — oxygen is okay as well —

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

== Hardware

— high voltage has been checked

— some issues with LeCroy power supply

— in time since shutdown, maintained low argon flow

— yesterday tested argon

— oxygen is okay as well

— blue sheet was signed yesterday afternoon

— started P10 flow yesterday

— ~9.7% this morning

— will establish recirculating once nominal concentration reached

— will then test lasers, etc.

— schedule is currently unclear regarding order of priority (APEX, STAR, FXT?)

— STAR expects to be ready by the 16th, some concern about magnet trips

== Electronics

— Tonko is working in outages 

— 9 inner sector RDOs “masked forever”

— establishing trigger to run TPC and check ability to see tracks

== Software

— Gene will be working on SC for Run25 p+p

— Yuri watching  for TPC start of data taking to restart cron jobs for TpcAvgPowerSupply, starMagAvg, and tpcDriftVelocity.

— TFG25k with new TPC hit errors depending on magnetic field has been released on cvmfs 

— see https://drupal.star.bnl.gov/STAR/blog/fisyak/TFG25k-release

— Instruction “How to use TFG” has been updated https://github.com/fisyak/star-sw/blob/TFG/README.md

— How to use TFG release from cvmfs

setenv USE_CVMFS 1

source /cvmfs/star.sdcc.bnl.gov/TFG/packages/TFG/setupTFG.csh

starver _desired_TFG_version__, from TFG16a to TFG25k, .DEV2 == TFG is check out HEAD from TFG repository, it could be unstable.

switch between ROOT5 and ROOT6:

setup root6 (6.37.01)

setup root5 (5.34.39)

to switch between cvmfs, afs, and nfs4 version use :

setup afs

setup nfs4

setup cvmfs

Switch between debug and nodebug (opt) versions use

setup debug

setup nodebug

setup opt

To set display title to version use : xtitl

Sometimes it is usefull to make ln -s $STAR/.rootrc .

— Yuri reran TPC drift velocity with new hit errors (TFG25k). I see that some runs has been recovered and new drift velocities are systematically lower than old ones.

  

— Yuri continues to work on new TPC hit errors using TpcRS simulation in order to understand Sti Pulls.

== AOB

— Need to plan the future of this meeting (shifting focus to solely software, QA, calibrations, etc.?) 

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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