CMS Pixel Detector Miscellaneous
Phase 1 Phase 2
Layer 1 Replacement Layers 2-4
  Layer 1 Replacement Elog  Not logged in ELOG logo
Entry  Mon Jan 20 21:33:20 2020, Dinko Ferencek, Cold box tests, Latest tests of PH optimization TrimBitTest_old.pngTrimBitTest_new.png
    Reply  Tue Jan 21 12:19:08 2020, Dinko Ferencek, Cold box tests, Latest tests of PH optimization 
Message ID: 47     Entry time: Mon Jan 20 21:33:20 2020     Reply to this: 48
Author: Dinko Ferencek 
Category: Cold box tests 
Subject: Latest tests of PH optimization 
We did some tests by running the latest version of pXar on modules M1521, M1529, M1534 and M1536, specifically trimming and PH optimization. Of the 4 modules tested, the PH optimization converged only for M1521. We plan to further investigate with Urs' help possible reasons for failed PH optimization.

We also noticed a change in the threshold distribution plot of the latest trim bit test compared to the previous version of the test (see attached plots).
Attachment 1: TrimBitTest_old.png  22 kB  | Show | Show all
Attachment 2: TrimBitTest_new.png  22 kB  | Show | Show all
ELOG V3.1.3-7933898