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MD 382: Beam Transfer Function and diffusion mechanisms

The Beam Transfer Function (BTF) measurements have been previously tested in the LHC during MD block 1 and 2. Different machine configurations (i.e. energy, beam intensity, emittance etc...) have been tested to determine a safe set-up (excitation amplitude) of the system to be completely transparent...

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Autores principales: Tambasco, Claudia, Barranco Garcia, Javier, Buffat, Xavier, Crouch, Matthew, Pieloni, Tatiana, Boccardi, Andrea, Fuchsberger, Kajetan, Gasior, Marek, Kotzian, Gerd, Lefevre, Thibaut, Pojer, Mirko, Salvachua Ferrando, Belen Maria, Solfaroli Camillocci, Matteo, Giachino, Rossano
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:http://cds.cern.ch/record/2123854
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author Tambasco, Claudia
Barranco Garcia, Javier
Buffat, Xavier
Crouch, Matthew
Pieloni, Tatiana
Boccardi, Andrea
Fuchsberger, Kajetan
Gasior, Marek
Kotzian, Gerd
Lefevre, Thibaut
Pojer, Mirko
Salvachua Ferrando, Belen Maria
Solfaroli Camillocci, Matteo
Giachino, Rossano
author_facet Tambasco, Claudia
Barranco Garcia, Javier
Buffat, Xavier
Crouch, Matthew
Pieloni, Tatiana
Boccardi, Andrea
Fuchsberger, Kajetan
Gasior, Marek
Kotzian, Gerd
Lefevre, Thibaut
Pojer, Mirko
Salvachua Ferrando, Belen Maria
Solfaroli Camillocci, Matteo
Giachino, Rossano
author_sort Tambasco, Claudia
collection CERN
description The Beam Transfer Function (BTF) measurements have been previously tested in the LHC during MD block 1 and 2. Different machine configurations (i.e. energy, beam intensity, emittance etc...) have been tested to determine a safe set-up (excitation amplitude) of the system to be completely transparent to the beam (no emittance blow-up neither losses). The aim of this experiment in MD block 3 was to characterize the Stability Diagram (SD) in the presence of diffusion mechanisms induced by excited resonances due to beam-beam long range and Landau octupole interplay. During the experiment, BTF measurements have been acquired at flat top for different settings of Landau octupole current, different chromaticity values and transverse feedback gains. In this note the description of the experiment is presented together with some preliminary results.
id cern-2123854
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2016
record_format invenio
spelling cern-21238542019-09-30T06:29:59Zhttp://cds.cern.ch/record/2123854engTambasco, ClaudiaBarranco Garcia, JavierBuffat, XavierCrouch, MatthewPieloni, TatianaBoccardi, AndreaFuchsberger, KajetanGasior, MarekKotzian, GerdLefevre, ThibautPojer, MirkoSalvachua Ferrando, Belen MariaSolfaroli Camillocci, MatteoGiachino, RossanoMD 382: Beam Transfer Function and diffusion mechanismsAccelerators and Storage RingsThe Beam Transfer Function (BTF) measurements have been previously tested in the LHC during MD block 1 and 2. Different machine configurations (i.e. energy, beam intensity, emittance etc...) have been tested to determine a safe set-up (excitation amplitude) of the system to be completely transparent to the beam (no emittance blow-up neither losses). The aim of this experiment in MD block 3 was to characterize the Stability Diagram (SD) in the presence of diffusion mechanisms induced by excited resonances due to beam-beam long range and Landau octupole interplay. During the experiment, BTF measurements have been acquired at flat top for different settings of Landau octupole current, different chromaticity values and transverse feedback gains. In this note the description of the experiment is presented together with some preliminary results.CERN-ACC-NOTE-2016-0016oai:cds.cern.ch:21238542016-01-14
spellingShingle Accelerators and Storage Rings
Tambasco, Claudia
Barranco Garcia, Javier
Buffat, Xavier
Crouch, Matthew
Pieloni, Tatiana
Boccardi, Andrea
Fuchsberger, Kajetan
Gasior, Marek
Kotzian, Gerd
Lefevre, Thibaut
Pojer, Mirko
Salvachua Ferrando, Belen Maria
Solfaroli Camillocci, Matteo
Giachino, Rossano
MD 382: Beam Transfer Function and diffusion mechanisms
title MD 382: Beam Transfer Function and diffusion mechanisms
title_full MD 382: Beam Transfer Function and diffusion mechanisms
title_fullStr MD 382: Beam Transfer Function and diffusion mechanisms
title_full_unstemmed MD 382: Beam Transfer Function and diffusion mechanisms
title_short MD 382: Beam Transfer Function and diffusion mechanisms
title_sort md 382: beam transfer function and diffusion mechanisms
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2123854
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