Energy transfer in binary collisions of two gyrating charged particles in a magnetic field

Nersisyan, H B; Zwicknagel, G

doi:10.1063/1.3476266

Title: Energy transfer in binary collisions of two gyrating charged particles in a magnetic field

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Abstract

Binary collisions of the gyrating charged particles in an external magnetic field are considered within a classical second-order perturbation theory, i.e., up to contributions that are quadratic in the binary interaction, starting from the unperturbed helical motion of the particles. The calculations are done with the help of a binary collision treatment, which is valid for any strength of the magnetic field and involves all harmonics of the particles' cyclotron motion. The energy transfer is explicitly calculated for a regularized and screened potential, which is both of finite range and nonsingular at the origin. The validity of the perturbation treatment is evaluated by comparing with classical trajectory Monte Carlo (CTMC) calculations which also allow one to investigate the strong collisions with large energy and velocity transfer at low velocities. For large initial velocities, on the other hand, only small velocity transfers occur. There the nonperturbative numerical CTMC results agree excellently with the predictions of the perturbative treatment.

Authors:

Nersisyan, H B; Zwicknagel, G ^[1]

Institut fuer Theoretische Physik II, Erlangen-Nuernberg Universitaet, Staudtstrasse 7, D-91058 Erlangen (Germany)

Publication Date:: Sun Aug 15 00:00:00 EDT 2010

OSTI Identifier:: 21432217

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 17; Journal Issue: 8; Other Information: DOI: 10.1063/1.3476266; (c) 2010 American Institute of Physics; Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CHARGED PARTICLES; CHARGED-PARTICLE TRANSPORT; COLLISIONS; ENERGY TRANSFER; MAGNETIC FIELDS; MONTE CARLO METHOD; PERTURBATION THEORY; PLASMA; VELOCITY; CALCULATION METHODS; RADIATION TRANSPORT

Citation Formats


                    Nersisyan, H B, and Zwicknagel, G. Energy transfer in binary collisions of two gyrating charged particles in a magnetic field.  United States: N. p., 2010. 
        Web.  doi:10.1063/1.3476266.

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                    Nersisyan, H B, & Zwicknagel, G. Energy transfer in binary collisions of two gyrating charged particles in a magnetic field.  United States.  https://doi.org/10.1063/1.3476266

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                    Nersisyan, H B, and Zwicknagel, G. 2010.  
        "Energy transfer in binary collisions of two gyrating charged particles in a magnetic field".  United States.  https://doi.org/10.1063/1.3476266.

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@article{osti_21432217,

  title        = {Energy transfer in binary collisions of two gyrating charged particles in a magnetic field},

  author       = {Nersisyan, H B and Zwicknagel, G},

  abstractNote = {Binary collisions of the gyrating charged particles in an external magnetic field are considered within a classical second-order perturbation theory, i.e., up to contributions that are quadratic in the binary interaction, starting from the unperturbed helical motion of the particles. The calculations are done with the help of a binary collision treatment, which is valid for any strength of the magnetic field and involves all harmonics of the particles' cyclotron motion. The energy transfer is explicitly calculated for a regularized and screened potential, which is both of finite range and nonsingular at the origin. The validity of the perturbation treatment is evaluated by comparing with classical trajectory Monte Carlo (CTMC) calculations which also allow one to investigate the strong collisions with large energy and velocity transfer at low velocities. For large initial velocities, on the other hand, only small velocity transfers occur. There the nonperturbative numerical CTMC results agree excellently with the predictions of the perturbative treatment.},

  doi          = {10.1063/1.3476266},

  url          = {https://www.osti.gov/biblio/21432217},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 8,

  volume       = 17,

  place        = {United States},

  year         = {Sun Aug 15 00:00:00 EDT 2010},

  month        = {Sun Aug 15 00:00:00 EDT 2010}

}

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