Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 88: Detector Systems III

T 88.4: Vortrag

Donnerstag, 18. März 2021, 16:45–17:00, Tm

Upgrade of the LHCb Beam Condition Monitor — •Martin Bieker, Holger Stevens, 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 as close as 3.5 mm to the LHC beams, the detector is at risk of damage from adverse beam conditions. For this reason, the particle flux is monitored near the beampipe by 8 diamond sensors in a circular arrangement at either side of and close to the interaction point.

This so-called Beam Conditions Monitor (BCM) successfully protected the LHCb detector during Run I and Run II of the LHC. However, at the end of Run II in 2018 indications of possible ageing effects in the diamond sensors were observed. The system is being overhauled and will receive new diamond sensors and a new back-end electronics matching the LHCb upgrade standards.

This talk will give an overview of the activities linked to the development of the new BCM system. Both the status of the readout architecture and the characterisation of diamond sensors for use in the upgrade BCM system will be covered.