Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 12: Detector systems I

T 12.6: Talk

Monday, March 30, 2020, 17:50–18:05, H-HS XIII

Diamond sensors for the LHCb Beam Condition Monitor — •Martin Bieker, Lars Funke, and Dirk Wiedner — Experimentelle Physik 5, TU Dortmund

The LHCb experiment is a single-arm forward spectrometer at the LHC and it focuses on measurements in the b and c quark sector. Due to its unique geometry, featuring a sensitive tracking system located close to the LHC beam, the detector is at risk of adverse beam conditions. For this reason LHCb employs 16 diamond sensors that monitor the particle flux near the beam pipe at two locations close to the interaction point.

The so called Beam Conditions Monitor (BCM) successfully protected the LHCb defector during Run I and Run II of the LHC. However at the end of Run 2 in 2018 indications for possible ageing effect of the diamond sensors were observed. Therefore, the system is overhauled and will receive new diamond sensors and a new back end electronic matching the LHCb upgrade standards.

This talk will give an overview of the activities linked to the upgrade. Special emphasis is put on the characterization of diamond sensors and their use in the new BCM system.