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CMS HCAL VTRx-induced communication loss and mitigation

Grace Cummings · CERN

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About

The Compact Muon Solenoid (CMS) Phase 1 Hadron Calorimeter Upgrade (HCAL) saw the first large-scale use of VTRx modules, optical transceivers designed to be radiation and magnetic field tolerant. During Run II of the Large Hadron Collider, the CMS HCAL experienced a short period of communication loss that revealed a manufacturing weakness in the VTRx affecting nearly half of the communication links. The CMS HCAL Team provided the first observation of this phenomenon, revealed its temperature dependence, and pioneered the mitigation tactic adopted by other LHC experiments. We will present these aspects of the larger VTRx investigation..

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The talk

  1. CMS HCAL VTRx-induced communication loss and mitigation 2021-09-21 · 25 min · CERN's player

Credits and licence

Institution
CERN
Department
Conferences
Speaker
Grace Cummings
Year
2021
Language
English
Subjects
Physics, Engineering
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
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