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Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC
The LHC heavy-ion program with 208Pb⁸²⁺ beams is foreseen to benefit from a significant intensity upgrade in 2022. A performance limitation may arise from ion fragments scattered out of the collimators in the betatron cleaning insertion, which risk quenching superconducting magnets during periods of...
Autores principales: | , , , , , , , , |
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Lenguaje: | eng |
Publicado: |
2022
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.18429/JACoW-IPAC2022-WEPOST018 http://cds.cern.ch/record/2845750 |
_version_ | 1780976568907071488 |
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author | Potoine, Jean-Baptiste Bruce, Roderik Cai, Rongrong Esposito, Luigi Salvatore Hermes, Pascal Lechner, Anton Redaelli, Stefano Waets, Andreas Wrobel, Frederic |
author_facet | Potoine, Jean-Baptiste Bruce, Roderik Cai, Rongrong Esposito, Luigi Salvatore Hermes, Pascal Lechner, Anton Redaelli, Stefano Waets, Andreas Wrobel, Frederic |
author_sort | Potoine, Jean-Baptiste |
collection | CERN |
description | The LHC heavy-ion program with 208Pb⁸²⁺ beams is foreseen to benefit from a significant intensity upgrade in 2022. A performance limitation may arise from ion fragments scattered out of the collimators in the betatron cleaning insertion, which risk quenching superconducting magnets during periods of short beam lifetime. In order to mitigate this risk, an alternative collimation technique, relying on bent crystals as primary collimators, will be used in future heavy-ion runs. In this paper, we study the power deposition in superconducting magnets by means of FLUKA shower simulations, comparing the standard collimation system against the crystal-based one. The studies focus on the dispersion suppressor regions downstream of the betatron cleaning insertion, where the ion fragment losses are the highest. Based on these studies, we quantify the expected quench margin expected in future runs with 208Pb⁸²⁺ beams. |
id | cern-2845750 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28457502023-01-11T21:31:16Zdoi:10.18429/JACoW-IPAC2022-WEPOST018http://cds.cern.ch/record/2845750engPotoine, Jean-BaptisteBruce, RoderikCai, RongrongEsposito, Luigi SalvatoreHermes, PascalLechner, AntonRedaelli, StefanoWaets, AndreasWrobel, FredericPower Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHCAccelerators and Storage RingsThe LHC heavy-ion program with 208Pb⁸²⁺ beams is foreseen to benefit from a significant intensity upgrade in 2022. A performance limitation may arise from ion fragments scattered out of the collimators in the betatron cleaning insertion, which risk quenching superconducting magnets during periods of short beam lifetime. In order to mitigate this risk, an alternative collimation technique, relying on bent crystals as primary collimators, will be used in future heavy-ion runs. In this paper, we study the power deposition in superconducting magnets by means of FLUKA shower simulations, comparing the standard collimation system against the crystal-based one. The studies focus on the dispersion suppressor regions downstream of the betatron cleaning insertion, where the ion fragment losses are the highest. Based on these studies, we quantify the expected quench margin expected in future runs with 208Pb⁸²⁺ beams.oai:cds.cern.ch:28457502022 |
spellingShingle | Accelerators and Storage Rings Potoine, Jean-Baptiste Bruce, Roderik Cai, Rongrong Esposito, Luigi Salvatore Hermes, Pascal Lechner, Anton Redaelli, Stefano Waets, Andreas Wrobel, Frederic Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title | Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title_full | Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title_fullStr | Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title_full_unstemmed | Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title_short | Power Deposition Studies for Crystal-Based Heavy Ion Collimation in the LHC |
title_sort | power deposition studies for crystal-based heavy ion collimation in the lhc |
topic | Accelerators and Storage Rings |
url | https://dx.doi.org/10.18429/JACoW-IPAC2022-WEPOST018 http://cds.cern.ch/record/2845750 |
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