Commissioning and running of sPHENIX

[Yasser Corrales Morales <ycmorales AT rcf.rhic.bnl.gov>]

Hi Jamie,

at least for the MVTX, currently we dont keep timing information in the Event combiner header for strobe without hits.

I'm working in a new raw event header that fix that issue and also include more QA information from each FeeId, hopefully it would be ready by Today.

Cheers,

Yasser.

On 6/11/24 11:25, Jamie Nagle wrote:

Hello All (cc sphenix-run-l for the announcement),

The meeting / working session focused on MVTX/TPC/TPOT BCO alignment / data integrity checks issue(s) will be tomorrow:

Wednesday, June 12, 2024 from 1:30 pm - 3 pm, and below are the Zoom coordinates.     

Zoom coordinates https://bnl.zoomgov.com/j/1614645041?pwd=bmE4STBRZk5tVVVUUC8zRnQxSlFyQT09

I would like this to be a working session,  i.e., after some  discussion, really writing, sharing code...

The basic idea (as discussed previously) is to check in offline code for what fraction of GL1 triggers (GL1 data and its BCO), do we have data from the MVTX, INTT, TPOT covering that BCO.      It is important to check individual packets and then what fraction of events have the entire detector.     It would be good in each  case to pick  a few runs, at least one where you  know part of the detector dropped out (i.e., a test case that should definitely  show missing data).     

 

There has also been discussion about whether with the MVTX, INTT, TPOT one can tell if data is simply missing, or if that segment of the detector had no hits.    My understanding (glad to be corrected) is that all systems send a header with the BCO, even if all pixels, strips, whatever, had no hits.

Sincerely,

Jamie

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|| James L. Nagle   
|| Professor of Physics, University of Colorado Boulder

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-- 
Yasser Corrales Morales

Staff Scientist at MIT