### Abstract

Original language | English |
---|---|

Pages (from-to) | 57-71 |

Number of pages | 15 |

Journal | Plasma Physics and Controlled Fusion |

Volume | 36 |

Issue number | 1 |

DOIs | |

Publication status | Published - 1994 |

MoE publication type | A1 Journal article-refereed |

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### Cite this

*Plasma Physics and Controlled Fusion*,

*36*(1), 57-71. https://doi.org/10.1088/0741-3335/36/1/005

}

*Plasma Physics and Controlled Fusion*, vol. 36, no. 1, pp. 57-71. https://doi.org/10.1088/0741-3335/36/1/005

**Analysis of velocity diffusion of electrons with Vlasov-Poisson simulations.** / Berndtson, Jouko; Heikkinen, Jukka; Karttunen, Seppo; Pättikangas, Timo; Salomaa, Rainer.

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

TY - JOUR

T1 - Analysis of velocity diffusion of electrons with Vlasov-Poisson simulations

AU - Berndtson, Jouko

AU - Heikkinen, Jukka

AU - Karttunen, Seppo

AU - Pättikangas, Timo

AU - Salomaa, Rainer

N1 - Project code: ENE0630

PY - 1994

Y1 - 1994

N2 - Wave-induced velocity diffusion is studied with a one-dimensional relativistic Vlasov-Poisson code. The diffusion coefficient is determined by following test electrons in the self-consistent electrostatic field formed by a narrow spectrum of electron plasma waves. The diffusion coefficient is found to be slightly larger than the quasilinear value at intermediate values of Chirikov's overlap parameter. The largest deviation is about 20-30%. At higher values of the overlap parameter, the diffusion is slower than quasilinear for a small number of field modes, but faster than quasilinear for a large number of the modes.

AB - Wave-induced velocity diffusion is studied with a one-dimensional relativistic Vlasov-Poisson code. The diffusion coefficient is determined by following test electrons in the self-consistent electrostatic field formed by a narrow spectrum of electron plasma waves. The diffusion coefficient is found to be slightly larger than the quasilinear value at intermediate values of Chirikov's overlap parameter. The largest deviation is about 20-30%. At higher values of the overlap parameter, the diffusion is slower than quasilinear for a small number of field modes, but faster than quasilinear for a large number of the modes.

U2 - 10.1088/0741-3335/36/1/005

DO - 10.1088/0741-3335/36/1/005

M3 - Article

VL - 36

SP - 57

EP - 71

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 1

ER -