Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 14: DAQ and Trigger 1

T 14.1: Vortrag

Montag, 21. März 2022, 16:15–16:30, T-H27

A readout system for the LHCb Beam Condition Monitor based on off-the-shelf FPGA hardware — •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 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 beam pipe by 8 diamond sensors in a circular arrangement at either side of and close to the interaction point.

This so-called Beam Condition Monitor (BCM) successfully protected the LHCb detector during Run I and Run II of the LHC. In preparation for the following Run III, the BCM is overhauled as part of a comprehensive upgrade of the LHCb detector. The development of a new readout system is an important part of the BCM related improvements. This system is responsible for monitoring the BCM data and initiating a beam abort in case adverse beam conditions are detected.

This talk will give an overview of the new readout system and the accompanying firmware developments: A flexible architecture based on commercially sourced FPGA boards is presented and the integration into the existing LHCb DAQ framework is outlined.