Speaker
Description
Thanks to the properties of the LHCb-RICH optical system, the time of arrival of the Cherenkov photons emitted by the charged particles passing through the detector can be predicted very precisely. This timing information can be
used to significantly improve both the PID performance and the signal to noise ratio for
the detector and will ultimately allow the system to withstand luminosities
in excess of 10$^{34}$ cm$^{2}$s$^{-1}$, foreseen after the long shutdown 3 phase (2026-2028).
In this talk I will show the preliminary results of a test beam campaign carried out at CERN between 2021 and 2022 where a small detector prototype equipped with a new front-end ASIC and a custom FPGA designed to timestamp the time of arrival of each photon was tested for the first time. Different types of photosensors were coupled to this new electronics and their timing performances evaluated.
