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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...

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Detalles Bibliográficos
Autores principales: 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
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.1888031
http://cds.cern.ch/record/908946
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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
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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
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