Pitch angle scattering of relativistic electrons near EMIC resonances in diverging magnetic fields

B Eliasson, K Papadopoulos

Research output: Contribution to journalArticle

Abstract

A theoretical study of the propagation of left hand polarized shear Alfvén waves in spatially decreasing magnetic field geometries near the EMIC resonance, including the spectrum and amplitude of the mode converted EMIC waves and the pitch angle scattering of relativistic electrons transiting the resonant region, is presented. The objective of the paper is to motivate an experimental study of the subject using the UCLA LAPD chamber. The results are relevant in exploring the possibility that shear Alfvén waves strategically injected into the radiation belts using either ionospheric heating from ground based RF transmitters or injected by transmitters based on space platforms can enhance the precipitation rate of trapped relativistic electrons. Effects of multi-ionic composition are also investigated.
LanguageEnglish
Article number104003
Number of pages10
JournalPlasma Physics and Controlled Fusion
Volume59
Issue number10
Early online date4 Sep 2017
DOIs
Publication statusPublished - 31 Oct 2017

Fingerprint

Shear waves
pitch (inclination)
magnetohydrodynamic waves
transmitters
Transmitters
ionospheric heating
Radiation belts
space platforms
Space platforms
Scattering
Magnetic fields
shear
radiation belts
Antenna grounds
Electrons
scattering
magnetic fields
electrons
chambers
Heating

Keywords

  • pitch angle scattering
  • relativistic electrons
  • electromagnetic ion cyclotron waves

Cite this

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abstract = "A theoretical study of the propagation of left hand polarized shear Alfv{\'e}n waves in spatially decreasing magnetic field geometries near the EMIC resonance, including the spectrum and amplitude of the mode converted EMIC waves and the pitch angle scattering of relativistic electrons transiting the resonant region, is presented. The objective of the paper is to motivate an experimental study of the subject using the UCLA LAPD chamber. The results are relevant in exploring the possibility that shear Alfv{\'e}n waves strategically injected into the radiation belts using either ionospheric heating from ground based RF transmitters or injected by transmitters based on space platforms can enhance the precipitation rate of trapped relativistic electrons. Effects of multi-ionic composition are also investigated.",
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Pitch angle scattering of relativistic electrons near EMIC resonances in diverging magnetic fields. / Eliasson, B; Papadopoulos, K.

In: Plasma Physics and Controlled Fusion, Vol. 59, No. 10, 104003, 31.10.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Pitch angle scattering of relativistic electrons near EMIC resonances in diverging magnetic fields

AU - Eliasson, B

AU - Papadopoulos, K

PY - 2017/10/31

Y1 - 2017/10/31

N2 - A theoretical study of the propagation of left hand polarized shear Alfvén waves in spatially decreasing magnetic field geometries near the EMIC resonance, including the spectrum and amplitude of the mode converted EMIC waves and the pitch angle scattering of relativistic electrons transiting the resonant region, is presented. The objective of the paper is to motivate an experimental study of the subject using the UCLA LAPD chamber. The results are relevant in exploring the possibility that shear Alfvén waves strategically injected into the radiation belts using either ionospheric heating from ground based RF transmitters or injected by transmitters based on space platforms can enhance the precipitation rate of trapped relativistic electrons. Effects of multi-ionic composition are also investigated.

AB - A theoretical study of the propagation of left hand polarized shear Alfvén waves in spatially decreasing magnetic field geometries near the EMIC resonance, including the spectrum and amplitude of the mode converted EMIC waves and the pitch angle scattering of relativistic electrons transiting the resonant region, is presented. The objective of the paper is to motivate an experimental study of the subject using the UCLA LAPD chamber. The results are relevant in exploring the possibility that shear Alfvén waves strategically injected into the radiation belts using either ionospheric heating from ground based RF transmitters or injected by transmitters based on space platforms can enhance the precipitation rate of trapped relativistic electrons. Effects of multi-ionic composition are also investigated.

KW - pitch angle scattering

KW - relativistic electrons

KW - electromagnetic ion cyclotron waves

UR - http://iopscience.iop.org/journal/0741-3335

U2 - 10.1088/1361-6587/aa8100

DO - 10.1088/1361-6587/aa8100

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JO - Plasma Physics and Controlled Fusion

T2 - Plasma Physics and Controlled Fusion

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