May 24 – 28, 2021
America/Vancouver timezone

LHCb RMS-R3 — new radiation hard system for on-line monitoring of beam and background conditions in Run 3

May 26, 2021, 5:00 AM
Poster Experiments: High energy physics Posters: High Energy Physics Experiments


Mr Vasyl Dobishuk (National Academy of Sciences of Ukraine (UA))


During Run 3, the LHCb experiment will collect data at a higher luminosity with respect to the previous decade of data taking. The Radiation Monitoring System (RMS-R3) will display the interaction rate of the LHC’s beams along with its background in LHCb. The RMS-R3 comprises four detector modules based on the Metal-Foil Detectors radiation hard technology that can withstand fluences up to $10^{20}$ MIPs/cm$^2$ or radiation doses of up to a GGy, during its entire lifespan. The modules are placed symmetrically around the beam pipe very close to the Interaction Point at LHCb at a distance of about 2.2 m, while covering a backward acceptance of 7–14 degrees. The readout electronics provide a continuous relative luminosity measurement for LHCb and observations of background evolutions during the various stages of the beam preparation towards collisions. The RMS-R3 detector's performance has shown good response reproducibility of about 1% and excellent linearity.

Funding information National Research Foundation of Ukraine

Primary author

Mr Vasyl Dobishuk (National Academy of Sciences of Ukraine (UA))


Federico Alessio (CERN) Serhii Chernyshenko (National Academy of Sciences of Ukraine (UA)) Oleksandr Okhrimenko (National Academy of Sciences of Ukraine (UA)) Prof. Valery Pugatch (Institute for Nuclear Research NAS)

Presentation materials