[Clas12_rgb] Timelines to check! and RGB meeting tomorrow at 8:30AM - agenda
Marco Mirazita
Marco.Mirazita at lnf.infn.it
Mon Jul 29 06:25:52 EDT 2019
Dear Silvia,
I have completed the study of the RICH timing by looking at the
monitoring data (180 runs).
My conclusions are:
- runs from 6156 to 6170 and from 6420 to 6597: we have an overall shift
of about 9 ns with respect to the data we used to calculate our time
calibration constants. Apart from this, the calibration looks good, but
the real check can be done only by looking at the full runs.
- for runs from 6189 to 6399 the shift is about 11 ns
- for run 6386 the shift is about 13 ns
- run 6293 has all the histograms empty, It seems this run has empty
histograms also for other detectors.
- runs 6333, 6337,6339, 6341 have two peaks, indicating an RF correction
problem: we see a similar issue in rg-A that was solved in the latest
cooking v15.
I have updated the last Friday meeting wiki page with all the plots.
Best regards,
Marco
Il 2019-07-25 11:44 silvia at jlab.org ha scritto:
> Dear all,
> Zhiwen has completed pass0/v9 (hipo4 - COATJAVA 6b.2.0, ten files/run),
> and Yordanka and Sangbaek have completed the monitoring and timelines.
>
> Detector experts are kindly requested to please look at the timelines
> and
> inform us of any problems they see, and needs for specific runs to be
> cooked for calibration. The link to the timelines is:
>
> https://clas12mon.jlab.org/rgb/pass0/v9/tlsummary/
>
> I can see from a quick glance that further calibrations and adjustments
> are clearly necessary for various subsystems.
>
> This will be therefore one of the items in the agenda of tomorrow's RGB
> meeting:
> Time: 8:30AM JLab time
> Location: JLab room F224-225
> BlueJeans ID: 237353330
>
> Tentative agenda:
>
> - timelines from pass0/v9, calibration needs, and plans for further
> pass
>
> - BAND update on low-energy run needs for the fall
>
> - RC schedule for the fall
>
> - Any other items are welcome
>
> Best regards,
> Silvia
>
>
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