Speaker
Lucia Sarchiapone
(Unknown)
Description
One of the crucial elements in terms of machine protection for CERN’s Large
Hadron Collider (LHC) is its beam loss monitoring (BLM) system. Online loss
measurements must prevent the superconducting magnets from quenching
and protect the machine components from damages due to unforeseen
critical beam losses. In order to ensure the BLM’s design quality, in the final
design phase of the LHC detailed FLUKA Monte Carlo simulations were
performed for the betatron collimation insertion. To define the dynamic
range and to derive the final calibration factors of the BLM detectors, the
FLUKA results were folded with response functions calculated with GEANT4.
In addition, independent GEANT4 simulations were performed using the
particles entering the BLM (calculated with FLUKA) as a source, in order to
derive the correct detector signal and calibration. This paper presents results
of FLUKA calculations performed for BLM’s installed in the collimation region.
In addition, benchmark measurements with BLM’s installed at the CERN-EU
high-energy Reference Field facility (CERF) are compared to respective
FLUKA simulations. This, together with the fact that the CERF source
spectra at the respective BLM locations are comparable with those at the
LHC, successfully confirms the accuracy needed for the performed LHC
design studies.
Primary author
Lucia Sarchiapone
(Unknown)
