Wakefield decay in a radially bounded plasma due to formation of electron halo

Standard

Wakefield decay in a radially bounded plasma due to formation of electron halo. / Spitsyn, R. I.; Lotov, K. V.

In: Plasma Physics and Controlled Fusion, Vol. 63, No. 5, 055002, 19.03.2021.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{e5d68ce8295349af83c2b5a0b36b89ea,

title = "Wakefield decay in a radially bounded plasma due to formation of electron halo",

abstract = "There is a new effect that can limit the lifetime of a weakly non-linear wakefield in a radially bounded plasma. If the drive beam is narrow, some of the plasma electrons fall out of the collective motion and leave the plasma radially, forming a negatively charged halo around it. These electrons repeatedly return to the plasma under the action of the charge separation field, interact with the plasma wave and cause its damping. The lowest-energy halo electrons take the energy from the wave more efficiently, because their trajectories are bent by the plasma wave towards the regions of the strongest acceleration. For correct accounting of the wave damping in simulations, it is necessary to take the simulation window at least twice as wide as the plasma. ",

keywords = "halo electrons, numerical simulations, plasma wakefield acceleration, wavebreaking",

author = "Spitsyn, {R. I.} and Lotov, {K. V.}",

year = "2021",

month = mar,

day = "19",

doi = "10.1088/1361-6587/abe055",

language = "English",

volume = "63",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing Ltd.",

number = "5",

}

RIS

TY - JOUR

T1 - Wakefield decay in a radially bounded plasma due to formation of electron halo

AU - Spitsyn, R. I.

AU - Lotov, K. V.

PY - 2021/3/19

Y1 - 2021/3/19

N2 - There is a new effect that can limit the lifetime of a weakly non-linear wakefield in a radially bounded plasma. If the drive beam is narrow, some of the plasma electrons fall out of the collective motion and leave the plasma radially, forming a negatively charged halo around it. These electrons repeatedly return to the plasma under the action of the charge separation field, interact with the plasma wave and cause its damping. The lowest-energy halo electrons take the energy from the wave more efficiently, because their trajectories are bent by the plasma wave towards the regions of the strongest acceleration. For correct accounting of the wave damping in simulations, it is necessary to take the simulation window at least twice as wide as the plasma.

AB - There is a new effect that can limit the lifetime of a weakly non-linear wakefield in a radially bounded plasma. If the drive beam is narrow, some of the plasma electrons fall out of the collective motion and leave the plasma radially, forming a negatively charged halo around it. These electrons repeatedly return to the plasma under the action of the charge separation field, interact with the plasma wave and cause its damping. The lowest-energy halo electrons take the energy from the wave more efficiently, because their trajectories are bent by the plasma wave towards the regions of the strongest acceleration. For correct accounting of the wave damping in simulations, it is necessary to take the simulation window at least twice as wide as the plasma.

KW - halo electrons

KW - numerical simulations

KW - plasma wakefield acceleration

KW - wavebreaking

UR - http://www.scopus.com/inward/record.url?scp=85103640750&partnerID=8YFLogxK

U2 - 10.1088/1361-6587/abe055

DO - 10.1088/1361-6587/abe055

M3 - Article

AN - SCOPUS:85103640750

VL - 63

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 5

M1 - 055002

ER -

ID: 28267918