Power deposition studies for standard and crystal-assisted heavy ion collimation in the CERN Large Hadron Collider

The LHC heavy-ion program with ${^{208}\mathrm{Pb}}^{82+}$ beams will benefit from a significant increase of the beam intensity when entering its high-luminosity era in Run 3 (2023). stored energy is expected to surpass 20 MJ per beam. equipped betatron collimation system, which intercepts transverse halo and protects sensitive equipment such as superconducting magnets against losses. However, nuclear fragmentation electromagnetic dissociation ions collimators generates flux secondary fragments, are lost downstream dispersion suppressor arc cells. These may pose performance limitation upcoming runs since they can induce magnet quenches. In order mitigate this risk, an alternative technique, relying on bent crystals primary collimators, be used forthcoming runs. paper, we study power deposition by means tracking fluka shower simulations, comparing standard system crystal-based one. quantify predictive ability simulation model, present absolute benchmarks loss monitor measurements 2018 run at $6.37\text{ }\text{ }Z\mathrm{TeV}$. cover several hundred meters beamline, first Based these studies, provide detailed analysis ion leakage cold quench margin future