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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: 112
Entry time: Wed Mar 18 15:16:47 2020
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| Author: |
Andrey Starodumov |
| Category: |
Software |
| Subject: |
Change in trimmig algorithm |
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Urs yesterday modified the algorithm and tested it. From today we are using it. Main change that threshold for trimming is not any more fixed to VthrComp=79 but calculated based on the bottom tornado value + 20. CalDel is also optimised. This allows us to avoid failures in the trimbit tests due to too high threshold, eg if the bottom of tornado close to 70 a fraction of pixels in a chip could have threshold above 70 and hence fail in the test.
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