Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron
Following a successful commissioning period, the multiturn extraction (MTE) at the CERN Proton Synchrotron (PS) has been applied for the fixed-target physics programme at the Super Proton Synchrotron (SPS) since September 2015. This exceptional extraction technique was proposed to replace the long-s...
Main Authors: | , , , , , , , , , , , |
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Format: | Article |
Language: | English |
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American Physical Society
2017-06-01
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Series: | Physical Review Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.20.061001 |
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author | A. Huschauer A. Blas J. Borburgh S. Damjanovic S. Gilardoni M. Giovannozzi M. Hourican K. Kahle G. Le Godec O. Michels G. Sterbini C. Hernalsteens |
author_facet | A. Huschauer A. Blas J. Borburgh S. Damjanovic S. Gilardoni M. Giovannozzi M. Hourican K. Kahle G. Le Godec O. Michels G. Sterbini C. Hernalsteens |
author_sort | A. Huschauer |
collection | DOAJ |
description | Following a successful commissioning period, the multiturn extraction (MTE) at the CERN Proton Synchrotron (PS) has been applied for the fixed-target physics programme at the Super Proton Synchrotron (SPS) since September 2015. This exceptional extraction technique was proposed to replace the long-serving continuous transfer (CT) extraction, which has the drawback of inducing high activation in the ring. MTE exploits the principles of nonlinear beam dynamics to perform loss-free beam splitting in the horizontal phase space. Over multiple turns, the resulting beamlets are then transferred to the downstream accelerator. The operational deployment of MTE was rendered possible by the full understanding and mitigation of different hardware limitations and by redesigning the extraction trajectories and nonlinear optics, which was required due to the installation of a dummy septum to reduce the activation of the magnetic extraction septum. This paper focuses on these key features including the use of the transverse damper and the septum shadowing, which allowed a transition from the MTE study to a mature operational extraction scheme. |
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id | doaj.art-90ea73dfac844990babe8db884f6e01e |
institution | Directory Open Access Journal |
issn | 2469-9888 |
language | English |
last_indexed | 2024-12-14T00:40:35Z |
publishDate | 2017-06-01 |
publisher | American Physical Society |
record_format | Article |
series | Physical Review Accelerators and Beams |
spelling | doaj.art-90ea73dfac844990babe8db884f6e01e2022-12-21T23:24:23ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882017-06-0120606100110.1103/PhysRevAccelBeams.20.061001Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton SynchrotronA. HuschauerA. BlasJ. BorburghS. DamjanovicS. GilardoniM. GiovannozziM. HouricanK. KahleG. Le GodecO. MichelsG. SterbiniC. HernalsteensFollowing a successful commissioning period, the multiturn extraction (MTE) at the CERN Proton Synchrotron (PS) has been applied for the fixed-target physics programme at the Super Proton Synchrotron (SPS) since September 2015. This exceptional extraction technique was proposed to replace the long-serving continuous transfer (CT) extraction, which has the drawback of inducing high activation in the ring. MTE exploits the principles of nonlinear beam dynamics to perform loss-free beam splitting in the horizontal phase space. Over multiple turns, the resulting beamlets are then transferred to the downstream accelerator. The operational deployment of MTE was rendered possible by the full understanding and mitigation of different hardware limitations and by redesigning the extraction trajectories and nonlinear optics, which was required due to the installation of a dummy septum to reduce the activation of the magnetic extraction septum. This paper focuses on these key features including the use of the transverse damper and the septum shadowing, which allowed a transition from the MTE study to a mature operational extraction scheme.http://doi.org/10.1103/PhysRevAccelBeams.20.061001 |
spellingShingle | A. Huschauer A. Blas J. Borburgh S. Damjanovic S. Gilardoni M. Giovannozzi M. Hourican K. Kahle G. Le Godec O. Michels G. Sterbini C. Hernalsteens Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron Physical Review Accelerators and Beams |
title | Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron |
title_full | Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron |
title_fullStr | Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron |
title_full_unstemmed | Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron |
title_short | Transverse beam splitting made operational: Key features of the multiturn extraction at the CERN Proton Synchrotron |
title_sort | transverse beam splitting made operational key features of the multiturn extraction at the cern proton synchrotron |
url | http://doi.org/10.1103/PhysRevAccelBeams.20.061001 |
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