Generation of ultrafast electrons by simultaneous stimulated Raman backward and forward scattering

Pierre Bertrand, Alain Ghizzo, Seppo Karttunen, Timo Pättikangas, Rainer Salomaa, Magdi Shourcri

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Fast electron generation in stimulated Raman forward and backward scattering is investigated. The simultaneous forward and backward scattering is shown to create an electrostatic field structure which is exceptionally efficient in producing highly relativistic electrons. The Vlasov-Maxwell simulations reveal that the two plasma wave packets generated by the backward and forward scattering are spatially separated, and thus form a two-staged electron ``accelerator.'' The bulk electrons are accelerated from the lower boundary of the trapping region of the slower wave to the upper boundary of the trapping region of the faster wave. The mechanism of the electron acceleration is analyzed by Vlasov-Maxwell simulations with self-consistent fields and by test particle calculations with prescribed electrostatic fields.
Original languageEnglish
Pages (from-to)5656-5659
Number of pages4
JournalPhysical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume49
Issue number6
DOIs
Publication statusPublished - 1994
MoE publication typeA1 Journal article-refereed

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forward scattering
Raman
Scattering
Electron
Electrostatic Field
trapping
scattering
electrons
Trapping
electron accelerators
electron acceleration
electric fields
plasma waves
wave packets
self consistent fields
simulation
Raman spectra
Wave Packet
Accelerator
Simulation

Cite this

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title = "Generation of ultrafast electrons by simultaneous stimulated Raman backward and forward scattering",
abstract = "Fast electron generation in stimulated Raman forward and backward scattering is investigated. The simultaneous forward and backward scattering is shown to create an electrostatic field structure which is exceptionally efficient in producing highly relativistic electrons. The Vlasov-Maxwell simulations reveal that the two plasma wave packets generated by the backward and forward scattering are spatially separated, and thus form a two-staged electron ``accelerator.'' The bulk electrons are accelerated from the lower boundary of the trapping region of the slower wave to the upper boundary of the trapping region of the faster wave. The mechanism of the electron acceleration is analyzed by Vlasov-Maxwell simulations with self-consistent fields and by test particle calculations with prescribed electrostatic fields.",
author = "Pierre Bertrand and Alain Ghizzo and Seppo Karttunen and Timo P{\"a}ttikangas and Rainer Salomaa and Magdi Shourcri",
note = "Project code: ENE9606",
year = "1994",
doi = "10.1103/PhysRevE.49.5656",
language = "English",
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Generation of ultrafast electrons by simultaneous stimulated Raman backward and forward scattering. / Bertrand, Pierre; Ghizzo, Alain; Karttunen, Seppo; Pättikangas, Timo; Salomaa, Rainer; Shourcri, Magdi.

In: Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 49, No. 6, 1994, p. 5656-5659.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Generation of ultrafast electrons by simultaneous stimulated Raman backward and forward scattering

AU - Bertrand, Pierre

AU - Ghizzo, Alain

AU - Karttunen, Seppo

AU - Pättikangas, Timo

AU - Salomaa, Rainer

AU - Shourcri, Magdi

N1 - Project code: ENE9606

PY - 1994

Y1 - 1994

N2 - Fast electron generation in stimulated Raman forward and backward scattering is investigated. The simultaneous forward and backward scattering is shown to create an electrostatic field structure which is exceptionally efficient in producing highly relativistic electrons. The Vlasov-Maxwell simulations reveal that the two plasma wave packets generated by the backward and forward scattering are spatially separated, and thus form a two-staged electron ``accelerator.'' The bulk electrons are accelerated from the lower boundary of the trapping region of the slower wave to the upper boundary of the trapping region of the faster wave. The mechanism of the electron acceleration is analyzed by Vlasov-Maxwell simulations with self-consistent fields and by test particle calculations with prescribed electrostatic fields.

AB - Fast electron generation in stimulated Raman forward and backward scattering is investigated. The simultaneous forward and backward scattering is shown to create an electrostatic field structure which is exceptionally efficient in producing highly relativistic electrons. The Vlasov-Maxwell simulations reveal that the two plasma wave packets generated by the backward and forward scattering are spatially separated, and thus form a two-staged electron ``accelerator.'' The bulk electrons are accelerated from the lower boundary of the trapping region of the slower wave to the upper boundary of the trapping region of the faster wave. The mechanism of the electron acceleration is analyzed by Vlasov-Maxwell simulations with self-consistent fields and by test particle calculations with prescribed electrostatic fields.

U2 - 10.1103/PhysRevE.49.5656

DO - 10.1103/PhysRevE.49.5656

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VL - 49

SP - 5656

EP - 5659

JO - Physical review E

JF - Physical review E

SN - 2470-0045

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