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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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Message ID: 92
Entry time: Thu Feb 27 10:14:09 2020
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| Author: |
danek kotlinski |
| Category: |
Module transfer |
| Subject: |
M1562 to DESY |
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M1562 was not qualified during a full test since the test did not complete.
Looking at the module I see that roc 2 has a lot of noise row 79.
I tried to mask all pixels in this row but the masking does not work.
With this feature one can run pixel alive but trimming fails completely for roc 2.
The only way to trim the module is to disable the whole roc 2.
Since it seems to me that we will never want to use this module in the detector
I have given it to Jory to be used in the DESY test beam.
She already has 2-3 module from the pre-production, so with older versions of HDIs & ROCs.
I have also looked at 2 other modules which were classified as C 1557 and 1558.
Both look fine to me but I have not run the PH optimization on them.
D. |