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CMS Pixel Detector
Miscellaneous
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Phase 1
Phase 2
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Layer 1 Replacement
Layers 2-4
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| Layer 1 Replacement Elog |
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 Tue Apr 21 17:39:48 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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 Wed Apr 22 17:41:11 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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Thu Apr 23 13:34:52 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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Message ID: 223
Entry time: Tue Apr 21 17:39:48 2020
Reply to this: 225
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| Author: |
Andrey Starodumov |
| Category: |
Full test |
| Subject: |
FT of M1542, M1554, M1555, M1653 |
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M1542: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC11,14,15. There was no such problem at previous test when CtrlReg=9 was used, while for the present test CtrlReg=17 was used
M1554: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC9,13. There was no such problem at previous test when CtrlReg=9 was used module was graded B, while for the present test CtrlReg=17 was used
M1555: Grade B due to 75 pixels had trimming failures at -20C in ROC10. There was no such problem at previous test when CtrlReg=9 was used, while for the present test CtrlReg=17 was used
M1653: Grade B due to >1% (~50) pixels had trimming failures at -20C in ROC5,12. |