skip to main content

SciTech ConnectSciTech Connect

Title: Relativistic electron acceleration by oblique whistler waves

Test-particle simulations of electrons interacting with finite-amplitude, obliquely propagating whistler waves are carried out in order to investigate the acceleration of relativistic electrons by these waves. According to the present findings, an efficient acceleration of relativistic electrons requires a narrow range of oblique propagation angles, close to the whistler resonance cone angle, when the wave amplitude is held constant at relatively low value. For a constant wave propagation angle, it is found that a range of oblique whistler wave amplitudes permits the acceleration of relativistic electrons to O(MeV) energies. An initial distribution of test electrons is shown to form a power-law distribution when plotted in energy space. It is also found that the acceleration is largely uniform in electron pitch-angle space.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742 (United States)
  2. (Korea, Republic of)
  3. National Institute of Technology Delhi, Dwarka, Delhi—110077 (India)
  4. School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do 446-701 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22218436
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATION; AMPLITUDES; ELECTRONS; MEV RANGE; PLASMA SIMULATION; PLASMA WAVES; RELATIVISTIC PLASMA; WAVE PROPAGATION; WHISTLERS