# TIPP 2021

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
30m
Poster Experiments: High energy physics

### Speaker

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

### Description

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))

### Co-authors

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)