STAR QA Board

[Geary Eppley <eppley@rice.edu>]

re: From pwg:
1. Run23015034/35/36 has 0 good events, marked as questionable in  
Runlog: iupsal: TOF HV off, no TOF hits

*************

Hi:

All the events are good if you are not using TOF data. These runs  
should show up on the bad-run lists for analysis using TOF.

Also, run 23015031 only had TOF hits for the first ~10% of the run.

-Geary

Quoting Ting Lin via STAR-QAboard-l <star-qaboard-l@lists.bnl.gov>:

> Hi all:
>
> A brief minutes for today's meeting:
> https://drupal.star.bnl.gov/STAR/comp/qa/pwg-qa/run-22-qa
>
> For Run-22 offline QA:
> From Lanny Ray:
> 1) On day 018, (last Tuesday) the anode voltages in grid area 5 in  
> sectors 8 – 11 were turned off. This persisted from runs 23018065 –  
> 23019026 as reported with QA issue 18064. Flemming was notified.
>     -> Flemming: There were massive TPC anode crash at that time,  
> voltage disappear, DO have to manually set it up. So lots of  
> confusion at that time, it was set to a wrong value 100voltage?, not  
> zero.
> 2) TPC tracking: Run integrated signed DCA were shifted >0 on day  
> 015, then shifted <0 towards the end of day 016, remaining so  
> through early Tuesday (day 018)
>    -> ZDC counts were low at day 015, ZDC scalar is not correctly  
> for a few days. There will be efforts to recalibrate this.
> 3) TPC tracking: Signed DCA vs run-time variations often exceed 0.1 cm.
> 4) BTOW: A section of towers were reported out for runs 23016081,  
> 082 by D.O. Daniel Kincses (see left plot below). However, such  
> large scale outages are difficult for the QA shift crew to detect  
> when the histograms are dominated by unmasked, hot towers. -> These  
> hot towers were masked starting on Thursday (day 020). -> It looks  
> like experts mask these hot channels out. This is very helpful for  
> offine QA, will continue to check this.
>
> From pwg:
> 1. Run23015034/35/36 has 0 good events, marked as questionable in  
> Runlog: iupsal: TOF HV off, no TOF hits
> 2. VPD vz - TPC vz is now centering around 0
> 3. day 014 has power dip, so take cosmic whole day.
>
> Best,
> Ting
>
> > -----Original Messages-----
> > From: "Ting Lin" <tinglin@sdu.edu.cn>
> > Sent Time: 2022-01-20 10:50:32 (Thursday)
> > To: "star-qaboard-l@lists.bnl.gov" <star-qaboard-l@lists.bnl.gov>
> > Cc:
> > Subject: QA Board Meeting January 21
> >
> > Hi all:
> >
> > We will have a QA board meeting on Friday at noon BNL time,  
> > https://drupal.star.bnl.gov/STAR/comp/qa/pwg-qa/run-22-qa
> >
> > If you have slides to show, please link to the meeting page (in  
> > below link) or send it to me.
> > https://drupal.star.bnl.gov/STAR/event/2022/01/21/QA-Board-Meeting
> >
> > Join ZoomGov Meeting:
> > https://urldefense.com/v3/__https://bnl.zoomgov.com/j/1618435669?pwd=L3B6M3JKcjRFMVFxQTNhaEdBdkZ5UT09__;!!P4SdNyxKAPE!XJYqKEMFjlFe1PfkqyrwxMH7lj_Tl2YSZwaUXXUfyzTJ8D_L1IwR0o6fb2EEU-2eeO-fY_ut__g$
> > Meeting ID: 161 843 5669
> > Passcode: 194299
> >
> > Thanks.
> > Ting
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