Speaker
Description
The FastRICH is a novel ASIC central to the implementation of a time resolved readout chain for the two ring-imaging Cherenkov (RICH) detectors in LHCb. The upgraded electronics will be installed during Long Shutdown Three (LS3) to retain RICH's excellent particle identification (PID) performance after transition to the high multiplicity environment provided by the High Luminosity LHC (HL-LHC). This contribution will present preliminary results from the FastRICH characterisation with radiation tolerance measurements, and verification of the FastRICH while coupled to the MaPMTs currently installed in RICH through lab and beam test measurements. Upcoming beam tests in 2026 will aim to instrument a full column before installation in the RICH detectors, as well as integrate the readout with the candidate Upgrade II (LS4) photodetector technologies: micro channel plate photomutipliers (MCP-PMT) and cryogenic silicon photomultiplier (SiPM) detectors.