<?xml version="1.0" encoding="UTF-8"?> <articles> <article xmlns:xlink="http://www.w3.org/1999/xlink/"> <front> <journal-meta> <journal-title>JACoW IPAC</journal-title> <abbrev-journal-title>JACoW IPAC</abbrev-journal-title> <issn/> </journal-meta> <article-meta> <title-group> <article-title>Simulated impact of the HL-LHC beam on a graphite target</article-title> </title-group> <contrib-group> <contrib contrib-type="author"> <name> <surname>Hjelle</surname> <given-names>Ingrid</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Lechner</surname> <given-names>Anton</given-names> </name> <aff> <institution>CERN</institution> </aff> <aff> <institution>Rome U.</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Piccini</surname> <given-names>Audrey</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Wiesner</surname> <given-names>Christoph</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Wollmann</surname> <given-names>Daniel</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Carra</surname> <given-names>Federico</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Heron</surname> <given-names>John</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> <contrib contrib-type="author"> <name> <surname>Pasquali</surname> <given-names>Michele</given-names> </name> <aff> <institution>CERN</institution> </aff> </contrib> </contrib-group> <pub-date pub-type="pub"> <year>2024</year> </pub-date> <volume>2024</volume> <fpage/> <lpage/> <self-uri xlink:href="http://cds.cern.ch/record/2912369"/> <self-uri xlink:href="http://cds.cern.ch/record/2912369/files/document.pdf"/> </article-meta> <abstract>In the High Luminosity Large Hadron Collider (HL-LHC) era, the intensity of the circulating bunches will increase to 2.2e+11 protons per bunch, almost twice the nominal LHC value. Besides detailed studies of known and new failure cases for HL-LHC, it is also required to investigate failures beyond nominal design. A consequence of such failures can be the impact of a large number of high-energy particles in one location, resulting in a significantly increased dam- age range due to an effect called hydrodynamic tunnelling.This phenomenon is studied by coupling FLUKA, an energy deposition code, and Autodyn, a hydrodynamic code. This paper presents the simulated evolution of the deposited energy, density, temperature and pressure for the impact of the HL-LHC beam on a graphite target. It then computes the resulting tunnelling range and finally compares the outcome with previous studies using LHC intensities.</abstract> </front> <article-type>research-article</article-type> <ref/> </article> </articles>