[Rgc] check of runs in low-PF epochs

[Sebastian Kuhn]

Dear RG-C analyzers,

I updated the tech note on dilution factor calculations based on data - see our Wiki page https://clasweb.jlab.org/wiki/index.php/Run_Group_C_Group_Meetings
I found a typo that affected the ND3 results, and I simplified all numerical expressions so they look more reasonable (and comparable to each other). Please check if you see any mistakes, and - if possible - re-calculate thePF and DF for your favorite channel and epoch using the PF method, preferably for both NH3 and ND3, but especially the latter.

Thanks, and happy weekend - Sebastian

On Jan 27, 2026, at 13:53, Silvia Niccolai via Rgc <rgc at jlab.org> wrote:

Dear all,
Following today's discussion, I contacted Chris to try and understand the ~10% differences that Hector observed in the PF for some ND3 epochs.
Chris suggested me to look at the raster distributions, so I went back to the Elog to retrieve the raster monitoring plots, and the results are in the attached slide. It seems like there is some vertical "sagging" of the material for the runs in the epochs having lower PF.
Best regards,
Silvia

<pf_differences_explanation.pdf>_______________________________________________
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