CMS Pixel Detector Miscellaneous
Phase 1 Phase 2
Layer 1 Replacement Layers 2-4
  Layer 1 Replacement Elog  Not logged in ELOG logo
Message ID: 103     Entry time: Wed Mar 11 17:59:48 2020
Author: Andrey Starodumov 
Category: Re-grading 
Subject: Regrading C M1542: due to Noise 
Follow the instruction from M1591 regrading log:
"To correct the Summary page one needs to remove rows from DB with C grade from previous data analysis (that for some reason stayed in DB)
using python Controller -d and then run python Controller -m MXXXX"
The Mean noise remains the same but threshold scaled according to the new VCal calibration (44 instead of 50).
To have corrected Mean noise one needs to refit SCurves, means run MoreWeb analysis with -r flag: "Controller -m MXXXX -r"
The modules still graded C due to relative gain spread. It will be re-tested tomorrow with new HP optimization/calibration procedure.
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