CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact
Antiprotons are produced at CERN by colliding a 26 GeV/c proton beam with a fixed target made of a 3 mm diameter, 55 mm length iridium core. The inherent characteristics of antiproton production involve extremely high energy depositions inside the target when impacted by each primary proton beam, m...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2016-07-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.19.073402 |
| _version_ | 1818239655416430592 |
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| author | Claudio Torregrosa Martin Antonio Perillo-Marcone Marco Calviani José-Luis Muñoz-Cobo |
| author_facet | Claudio Torregrosa Martin Antonio Perillo-Marcone Marco Calviani José-Luis Muñoz-Cobo |
| author_sort | Claudio Torregrosa Martin |
| collection | DOAJ |
| description | Antiprotons are produced at CERN by colliding a 26 GeV/c proton beam with a fixed target made of a 3 mm diameter, 55 mm length iridium core. The inherent characteristics of antiproton production involve extremely high energy depositions inside the target when impacted by each primary proton beam, making it one of the most dynamically demanding among high energy solid targets in the world, with a rise temperature above 2000 °C after each pulse impact and successive dynamic pressure waves of the order of GPa’s. An optimized redesign of the current target is foreseen for the next 20 years of operation. As a first step in the design procedure, this numerical study delves into the fundamental phenomena present in the target material core under proton pulse impact and subsequent pressure wave propagation by the use of hydrocodes. Three major phenomena have been identified, (i) the dominance of a high frequency radial wave which produces destructive compressive-to-tensile pressure response (ii) The existence of end-of-pulse tensile waves and its relevance on the overall response (iii) A reduction of 44% in tensile pressure could be obtained by the use of a high density tantalum cladding. |
| first_indexed | 2024-12-12T13:01:00Z |
| format | Article |
| id | doaj.art-91f907f0641f466cbb24be07680ac3b6 |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-12-12T13:01:00Z |
| publishDate | 2016-07-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-91f907f0641f466cbb24be07680ac3b62022-12-22T00:23:48ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882016-07-0119707340210.1103/PhysRevAccelBeams.19.073402CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impactClaudio Torregrosa MartinAntonio Perillo-MarconeMarco CalvianiJosé-Luis Muñoz-CoboAntiprotons are produced at CERN by colliding a 26 GeV/c proton beam with a fixed target made of a 3 mm diameter, 55 mm length iridium core. The inherent characteristics of antiproton production involve extremely high energy depositions inside the target when impacted by each primary proton beam, making it one of the most dynamically demanding among high energy solid targets in the world, with a rise temperature above 2000 °C after each pulse impact and successive dynamic pressure waves of the order of GPa’s. An optimized redesign of the current target is foreseen for the next 20 years of operation. As a first step in the design procedure, this numerical study delves into the fundamental phenomena present in the target material core under proton pulse impact and subsequent pressure wave propagation by the use of hydrocodes. Three major phenomena have been identified, (i) the dominance of a high frequency radial wave which produces destructive compressive-to-tensile pressure response (ii) The existence of end-of-pulse tensile waves and its relevance on the overall response (iii) A reduction of 44% in tensile pressure could be obtained by the use of a high density tantalum cladding.http://doi.org/10.1103/PhysRevAccelBeams.19.073402 |
| spellingShingle | Claudio Torregrosa Martin Antonio Perillo-Marcone Marco Calviani José-Luis Muñoz-Cobo CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact Physical Review Accelerators and Beams |
| title | CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact |
| title_full | CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact |
| title_fullStr | CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact |
| title_full_unstemmed | CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact |
| title_short | CERN antiproton target: Hydrocode analysis of its core material dynamic response under proton beam impact |
| title_sort | cern antiproton target hydrocode analysis of its core material dynamic response under proton beam impact |
| url | http://doi.org/10.1103/PhysRevAccelBeams.19.073402 |
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