|
CMS Pixel Detector
Miscellaneous
|
|
Phase 1
Phase 2
|
|
Layer 1 Replacement
Layers 2-4
|
| Layer 1 Replacement Elog |
Not logged in |
 |
|
|
|
Message ID: 58
Entry time: Mon Feb 3 11:28:38 2020
|
| Author: |
Anrey Starodumov |
| Category: |
Full test |
| Subject: |
4 modules FT: 1536, 1537,1538, 1540 |
|
|
Jan 28: Reception test for 1536, 1537, 1538 OK
Then cap gluing
Jan 29
- Reception test for 1540 OK
- FT:
-- 1536: B/B/B (-20/-20/+10). Electrical Test is B due to mean noise >200e. IV: 3umA for -20 and +10, slope >300
-- 1537: C/B/B. First -20 is C due ROC10 >200 TrimBits failure, noise >200e. IV: A
-- Trimbit test fails but Trimbit distribution is OK and Threshold reasonable (attachment)
==> Manually regraded to B
-- 1538: B/B/B (-20/-20/+10). Electrical Test is B due to mean noise >200e. IV: <0.2umA for +10, slope ~1
-- 1540: B/B/B (-20/-20/+10). Electrical Test is B due to mean noise >200e. IV: <0.8umA for +10, slope ~2.7 |
|