CMS Pixel Detector Miscellaneous
Phase 1 Phase 2
Layer 1 Replacement Layers 2-4
  Layer 1 Replacement Elog  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry  Tue Mar 24 18:11:52 2020, Andrey Starodumov, Re-grading, Reanalised test results 
    Reply  Wed Mar 25 18:31:46 2020, Andrey Starodumov, Re-grading, Reanalised test results 
Message ID: 139     Entry time: Wed Mar 25 18:31:46 2020     In reply to: 132
Author: Andrey Starodumov 
Category: Re-grading 
Subject: Reanalised test results 

Andrey Starodumov wrote:
Test resulsts of several modules have been re-analised without grading on trimbit failure.
M1614: C->B
M1613: C->A
M1609: C->B
M1618: B->A
M1612: B->B
M1610: B->B
M1608: C->B
M1606: C->C (too many badly trimmed pixels)
M1605: C->B

Most of all B grading and one C are due to badly trimmed pixels. The threshold after trimming usually has 3(!) separated peaks.
We should understand this feature.


More modules have been re-analysed:
1604: C->B
1603: C->B
1602: C->B
1601: B->A
1545: C->C (too many pixels on ROC14 are badly trimmed, to be retested tomorrow)
ELOG V3.1.3-7933898