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Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results

The HRMT27-RodTarg experiment employed the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods 8 mm in diameter, 140 mm in length, and made of high-density materials such as Ir, W, Ta, Mo, and alloys. The purpose of the experiment was to reduce uncertainties on the CERN a...

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Autores principales: Torregrosa Martin, Claudio, Perillo-Marcone, Antonio, Calviani, Marco, Gentini, Luca, Butcher, Mark, Muñoz-Cobo, José-Luis
Lenguaje:eng
Publicado: 2019
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevAccelBeams.22.013401
http://cds.cern.ch/record/2683830
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author Torregrosa Martin, Claudio
Perillo-Marcone, Antonio
Calviani, Marco
Gentini, Luca
Butcher, Mark
Muñoz-Cobo, José-Luis
author_facet Torregrosa Martin, Claudio
Perillo-Marcone, Antonio
Calviani, Marco
Gentini, Luca
Butcher, Mark
Muñoz-Cobo, José-Luis
author_sort Torregrosa Martin, Claudio
collection CERN
description The HRMT27-RodTarg experiment employed the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods 8 mm in diameter, 140 mm in length, and made of high-density materials such as Ir, W, Ta, Mo, and alloys. The purpose of the experiment was to reduce uncertainties on the CERN antiproton target material response and assess the material selection for its future redesign. The experiment was designed to recreate the extreme conditions reached in the production target, estimated in an increase of temperature above 2000 °C in less than 0.5  μs and a subsequent compressive-to-tensile pressure wave of several gigapascals. The goals of the experiment were (i) to validate the hydrocode calculations used for the prediction of the antiproton target response and (ii) to identify limits and failure mechanisms of the materials of interest. In order to accomplish these objectives, the experiment relied on extensive instrumentation (pointing at the target rod surfaces). This paper presents a detailed description of the experiment as well as the recorded online results which showed that most of the investigated materials suffered internal damage from conditions 5–7 times below the ones present in the AD target. Tantalum, on the other hand, apparently withstood the most extreme conditions without presenting internal cracking.
id oai-inspirehep.net-1712951
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling oai-inspirehep.net-17129512022-08-10T12:24:06Zdoi:10.1103/PhysRevAccelBeams.22.013401http://cds.cern.ch/record/2683830engTorregrosa Martin, ClaudioPerillo-Marcone, AntonioCalviani, MarcoGentini, LucaButcher, MarkMuñoz-Cobo, José-LuisExperiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online resultsAccelerators and Storage RingsThe HRMT27-RodTarg experiment employed the HiRadMat facility at CERN to impact intense 440 GeV proton beams onto thin rods 8 mm in diameter, 140 mm in length, and made of high-density materials such as Ir, W, Ta, Mo, and alloys. The purpose of the experiment was to reduce uncertainties on the CERN antiproton target material response and assess the material selection for its future redesign. The experiment was designed to recreate the extreme conditions reached in the production target, estimated in an increase of temperature above 2000 °C in less than 0.5  μs and a subsequent compressive-to-tensile pressure wave of several gigapascals. The goals of the experiment were (i) to validate the hydrocode calculations used for the prediction of the antiproton target response and (ii) to identify limits and failure mechanisms of the materials of interest. In order to accomplish these objectives, the experiment relied on extensive instrumentation (pointing at the target rod surfaces). This paper presents a detailed description of the experiment as well as the recorded online results which showed that most of the investigated materials suffered internal damage from conditions 5–7 times below the ones present in the AD target. Tantalum, on the other hand, apparently withstood the most extreme conditions without presenting internal cracking.oai:inspirehep.net:17129512019
spellingShingle Accelerators and Storage Rings
Torregrosa Martin, Claudio
Perillo-Marcone, Antonio
Calviani, Marco
Gentini, Luca
Butcher, Mark
Muñoz-Cobo, José-Luis
Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title_full Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title_fullStr Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title_full_unstemmed Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title_short Experiment exposing refractory metals to impacts of 440 GeV$/c$ proton beams for the future design of the CERN antiproton production target: Experiment design and online results
title_sort experiment exposing refractory metals to impacts of 440 gev$/c$ proton beams for the future design of the cern antiproton production target: experiment design and online results
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1103/PhysRevAccelBeams.22.013401
http://cds.cern.ch/record/2683830
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