Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow

The existing ISOLDE radio frequency quadrupole cooler and buncher (RFQCB) will be upgraded in the framework of the HIE-ISOLDE design study. In order to improve beam properties, the upgrade includes vacuum optimization with the aim of tayloring the overall pressure profile: increasing gas pressure at...

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Detalles Bibliográficos
Autores principales: Hermann, M, Babcock, C, Vandoni, G, Kersevan, R
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nimb.2013.08.061
http://cds.cern.ch/record/1711754
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author Hermann, M
Babcock, C
Vandoni, G
Kersevan, R
author_facet Hermann, M
Babcock, C
Vandoni, G
Kersevan, R
author_sort Hermann, M
collection CERN
description The existing ISOLDE radio frequency quadrupole cooler and buncher (RFQCB) will be upgraded in the framework of the HIE-ISOLDE design study. In order to improve beam properties, the upgrade includes vacuum optimization with the aim of tayloring the overall pressure profile: increasing gas pressure at the injection to enhance cooling and reducing it at the extraction to avoid emittance blow up while the beam is being bunched. This paper describes the vacuum modelling of the present RFQCB using Test Particle Monte Carlo (Molflow+). In order to benchmark the simulation results, real pressure profiles along the existing RFQCB are measured using variable helium flux in the cooling section and compared with the pressure profiles obtained with Molflow+. Vacuum conditions of the improved future RFQCB can then be simulated to validate its design. (C) 2013 Elsevier B.V. All rights reserved.
id cern-1711754
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-17117542019-09-30T06:29:59Zdoi:10.1016/j.nimb.2013.08.061http://cds.cern.ch/record/1711754engHermann, MBabcock, CVandoni, GKersevan, RSimulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code MolflowDetectors and Experimental TechniquesNuclear Physics - ExperimentThe existing ISOLDE radio frequency quadrupole cooler and buncher (RFQCB) will be upgraded in the framework of the HIE-ISOLDE design study. In order to improve beam properties, the upgrade includes vacuum optimization with the aim of tayloring the overall pressure profile: increasing gas pressure at the injection to enhance cooling and reducing it at the extraction to avoid emittance blow up while the beam is being bunched. This paper describes the vacuum modelling of the present RFQCB using Test Particle Monte Carlo (Molflow+). In order to benchmark the simulation results, real pressure profiles along the existing RFQCB are measured using variable helium flux in the cooling section and compared with the pressure profiles obtained with Molflow+. Vacuum conditions of the improved future RFQCB can then be simulated to validate its design. (C) 2013 Elsevier B.V. All rights reserved.oai:cds.cern.ch:17117542013
spellingShingle Detectors and Experimental Techniques
Nuclear Physics - Experiment
Hermann, M
Babcock, C
Vandoni, G
Kersevan, R
Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title_full Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title_fullStr Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title_full_unstemmed Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title_short Simulations of the HIE-ISOLDE radio frequency quadrupole cooler and buncher vacuum using the Monte Carlo test particle code Molflow
title_sort simulations of the hie-isolde radio frequency quadrupole cooler and buncher vacuum using the monte carlo test particle code molflow
topic Detectors and Experimental Techniques
Nuclear Physics - Experiment
url https://dx.doi.org/10.1016/j.nimb.2013.08.061
http://cds.cern.ch/record/1711754
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AT babcockc simulationsofthehieisolderadiofrequencyquadrupolecoolerandbunchervacuumusingthemontecarlotestparticlecodemolflow
AT vandonig simulationsofthehieisolderadiofrequencyquadrupolecoolerandbunchervacuumusingthemontecarlotestparticlecodemolflow
AT kersevanr simulationsofthehieisolderadiofrequencyquadrupolecoolerandbunchervacuumusingthemontecarlotestparticlecodemolflow

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