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[Richard Witt <witt AT usna.edu>]

Present: Alexei, Flemming, Jim, Yuri, Gene, and myself == Hardware — east laser was not running smoothly — checked during access, now working perfectly — this box has historically suffered water incursion on several occasions — fixed internal

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

== Hardware

— east laser was not running smoothly

— checked during access, now working perfectly

— this box has historically suffered water incursion on several occasions

— fixed internal contact 

— cathode interlock continuing to be a problem

— correlated with high humidity in the hall

== Electronics

— still the usual losses and repairs of RDOs and FEEs (usual 15% dead on average)

— in past week, two cases of FEE with higher deadtime (can be fixed afterward)

— occurs about once a week

== Software

— continuing work on for hit errors for DAQ5000

— iTPC errors with different magnetic field   

— errors should become worse with lowering magnetic field, but not always the case

— trying to understand this effect, perhaps related to track inclination 

== AOB

— Gene points out that sPHENIX has requested p+p starting around mid-December

— STAR will not collect data during p+p

— if p+p running lasts until the end of January, mid-December could be the end of STAR data collection

— if any calibration sets with the TPC  are still needed, NOW is the time for those requests

— Yuri suggests additional gain measurements before the end to compare with older 2008 measurements

— Jim mentioned a voltage scan might be doable during p+p running

— need to maintain the gas system running through p+p running just in case there is physics running for STAR after p+p

— Yuri received a request from a group working on P24iy, there is a shift in Kshort mass.

Best Regards,

  Richard

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-- 
"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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