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Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam

It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light veloci...

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Detalles Bibliográficos
Autores principales: Lotov, K.V., Sosedkin, A.P., Petrenko, A.V., Amorim, L.D., Vieira, J., Fonseca, R.A., Silva, L.O., Gschwendtner, E., Muggli, P.
Lenguaje:eng
Publicado: 2014
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.4904365
http://cds.cern.ch/record/1751292
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author Lotov, K.V.
Sosedkin, A.P.
Petrenko, A.V.
Amorim, L.D.
Vieira, J.
Fonseca, R.A.
Silva, L.O.
Gschwendtner, E.
Muggli, P.
author_facet Lotov, K.V.
Sosedkin, A.P.
Petrenko, A.V.
Amorim, L.D.
Vieira, J.
Fonseca, R.A.
Silva, L.O.
Gschwendtner, E.
Muggli, P.
author_sort Lotov, K.V.
collection CERN
description It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the trapped charge is limited by beam loading effects. The initial trapping is better for positrons, but at the acceleration stage a considerable fraction of positrons is lost from the wave. For efficient trapping of electrons, the plasma boundary must be sharp, with the density transition region shorter than several centimeters. Positrons are not susceptible to the initial plasma density gradient.
id cern-1751292
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17512922021-05-03T20:28:33Zdoi:10.1063/1.4904365http://cds.cern.ch/record/1751292engLotov, K.V.Sosedkin, A.P.Petrenko, A.V.Amorim, L.D.Vieira, J.Fonseca, R.A.Silva, L.O.Gschwendtner, E.Muggli, P.Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beamOther Fields of PhysicsIt is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the trapped charge is limited by beam loading effects. The initial trapping is better for positrons, but at the acceleration stage a considerable fraction of positrons is lost from the wave. For efficient trapping of electrons, the plasma boundary must be sharp, with the density transition region shorter than several centimeters. Positrons are not susceptible to the initial plasma density gradient.It is shown that co-linear injection of electrons or positrons into the wakefield of the self-modulating particle beam is possible and ensures high energy gain. The witness beam must co-propagate with the tail part of the driver, since the plasma wave phase velocity there can exceed the light velocity, which is necessary for efficient acceleration. If the witness beam is many wakefield periods long, then the trapped charge is limited by beam loading effects. The initial trapping is better for positrons, but at the acceleration stage a considerable fraction of positrons is lost from the wave. For efficient trapping of electrons, the plasma boundary must be sharp, with the density transition region shorter than several centimeters. Positrons are not susceptible to the initial plasma density gradient.arXiv:1408.4448oai:cds.cern.ch:17512922014-08-19
spellingShingle Other Fields of Physics
Lotov, K.V.
Sosedkin, A.P.
Petrenko, A.V.
Amorim, L.D.
Vieira, J.
Fonseca, R.A.
Silva, L.O.
Gschwendtner, E.
Muggli, P.
Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title_full Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title_fullStr Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title_full_unstemmed Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title_short Electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
title_sort electron trapping and acceleration by the plasma wakefield of a self-modulating proton beam
topic Other Fields of Physics
url https://dx.doi.org/10.1063/1.4904365
http://cds.cern.ch/record/1751292
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