Cargando…
Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target
The Large Hadron Collider (LHC) will allow for collision between two 7 TeV/c proton beams, each comprising 2808 bunches with 1.1*10/sup 11 / protons per bunch, traveling in opposite direction. The bunch length is 0.5 ns and two neighboring bunches are separated by 25 ns so that the duration of the e...
Autores principales: | , , , , , , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2005
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1063/1.1888031 http://cds.cern.ch/record/908946 |
_version_ | 1780908850014060544 |
---|---|
author | Tahir, N A Fortov, V E Goddard, B Hoffmann, Dieter H H Kain, V Lomonosov, I V Piriz, A R Schmidt, R Shutov, A Temporal, M |
author_facet | Tahir, N A Fortov, V E Goddard, B Hoffmann, Dieter H H Kain, V Lomonosov, I V Piriz, A R Schmidt, R Shutov, A Temporal, M |
author_sort | Tahir, N A |
collection | CERN |
description | The Large Hadron Collider (LHC) will allow for collision between two 7 TeV/c proton beams, each comprising 2808 bunches with 1.1*10/sup 11 / protons per bunch, traveling in opposite direction. The bunch length is 0.5 ns and two neighboring bunches are separated by 25 ns so that the duration of the entire beam is about 89 mu s. The beam power profile in the transverse direction is a Gaussian with a standard deviation of 0.2 mm. The energy stored in each beam is about 350 MJ that is sufficient to melt 500 kg of copper. In case of a failure in the machine protection systems, the entire beam could impact directly onto an accelerator equipment. A first estimate of the scale of damage resulting from such a failure has been assessed for a solid copper target hit by the beam by carrying out three- dimensional energy deposition calculations and two-dimensional numerical simulations of the hydrodynamic and thermodynamic response of the target. This work has shown that the penetration depth of the LHC protons will be between 10 and 40 m in solid copper. These calculations show that material conditions obtained in the target are similar to those planned for beam impact at dedicated accelerators designed to study the physics of high-energy-density states of matter, for example, the Facility for Antiprotons and Ion Research at the Gesellschaft fur Schwerionenforschung, Darmstadt "W. F. Henning, Nucl. Instrum Methods Phys. Res. B 214, 211 (2004)". |
id | cern-908946 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2005 |
record_format | invenio |
spelling | cern-9089462019-09-30T06:29:59Zdoi:10.1063/1.1888031http://cds.cern.ch/record/908946engTahir, N AFortov, V EGoddard, BHoffmann, Dieter H HKain, VLomonosov, I VPiriz, A RSchmidt, RShutov, ATemporal, MImpact of the 7 TeV/c Large Hadron Collider proton beam on a copper targetAccelerators and Storage RingsThe Large Hadron Collider (LHC) will allow for collision between two 7 TeV/c proton beams, each comprising 2808 bunches with 1.1*10/sup 11 / protons per bunch, traveling in opposite direction. The bunch length is 0.5 ns and two neighboring bunches are separated by 25 ns so that the duration of the entire beam is about 89 mu s. The beam power profile in the transverse direction is a Gaussian with a standard deviation of 0.2 mm. The energy stored in each beam is about 350 MJ that is sufficient to melt 500 kg of copper. In case of a failure in the machine protection systems, the entire beam could impact directly onto an accelerator equipment. A first estimate of the scale of damage resulting from such a failure has been assessed for a solid copper target hit by the beam by carrying out three- dimensional energy deposition calculations and two-dimensional numerical simulations of the hydrodynamic and thermodynamic response of the target. This work has shown that the penetration depth of the LHC protons will be between 10 and 40 m in solid copper. These calculations show that material conditions obtained in the target are similar to those planned for beam impact at dedicated accelerators designed to study the physics of high-energy-density states of matter, for example, the Facility for Antiprotons and Ion Research at the Gesellschaft fur Schwerionenforschung, Darmstadt "W. F. Henning, Nucl. Instrum Methods Phys. Res. B 214, 211 (2004)".oai:cds.cern.ch:9089462005 |
spellingShingle | Accelerators and Storage Rings Tahir, N A Fortov, V E Goddard, B Hoffmann, Dieter H H Kain, V Lomonosov, I V Piriz, A R Schmidt, R Shutov, A Temporal, M Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title | Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title_full | Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title_fullStr | Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title_full_unstemmed | Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title_short | Impact of the 7 TeV/c Large Hadron Collider proton beam on a copper target |
title_sort | impact of the 7 tev/c large hadron collider proton beam on a copper target |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.1063/1.1888031 http://cds.cern.ch/record/908946 |
work_keys_str_mv | AT tahirna impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT fortovve impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT goddardb impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT hoffmanndieterhh impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT kainv impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT lomonosoviv impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT pirizar impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT schmidtr impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT shutova impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget AT temporalm impactofthe7tevclargehadroncolliderprotonbeamonacoppertarget |