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Title: Saturation of energetic particle driven Alfven wave instability through velocity space diffusion

Abstract

It is demonstrated both numerically and analytically that the energetic particle driven Alfven wave instability saturates when the Alfven wave fluctuations are still quasi-coherent. The saturation is due to particle velocity space diffusion which steepens the velocity gradient of the resonant particles, thereby enhancing wave damping (Landau Damping).

Authors:
 [1];  [1];  [2]
  1. Massachusetts Institute of Technology, Minneapolis, MN. Plasma Fusion Center
  2. Oak Ridge National Lab., TN
Publication Date:
Research Org.:
Massachusetts Institute of Technology, Minneapolis, MN (US). Plasma Fusion Center
Sponsoring Org.:
USDOE
OSTI Identifier:
1178254
Report Number(s):
PFC/JA-91-24
Journal ID: ISSN 0375-9601
DOE Contract Number:  
FG02-91ER54109
Resource Type:
Journal Article
Journal Name:
Physics Letters. A
Additional Journal Information:
Journal Volume: 161; Journal Issue: 6; Journal ID: ISSN 0375-9601
Country of Publication:
United States
Language:
English

Citation Formats

Gang, F. Y., Sigmar, D. J., and Leboeuf, J. N.. Saturation of energetic particle driven Alfven wave instability through velocity space diffusion. United States: N. p., 1992. Web. doi:10.1016/0375-9601(92)91084-5.
Gang, F. Y., Sigmar, D. J., & Leboeuf, J. N.. Saturation of energetic particle driven Alfven wave instability through velocity space diffusion. United States. https://doi.org/10.1016/0375-9601(92)91084-5
Gang, F. Y., Sigmar, D. J., and Leboeuf, J. N.. 1992. "Saturation of energetic particle driven Alfven wave instability through velocity space diffusion". United States. https://doi.org/10.1016/0375-9601(92)91084-5. https://www.osti.gov/servlets/purl/1178254.
@article{osti_1178254,
title = {Saturation of energetic particle driven Alfven wave instability through velocity space diffusion},
author = {Gang, F. Y. and Sigmar, D. J. and Leboeuf, J. N.},
abstractNote = {It is demonstrated both numerically and analytically that the energetic particle driven Alfven wave instability saturates when the Alfven wave fluctuations are still quasi-coherent. The saturation is due to particle velocity space diffusion which steepens the velocity gradient of the resonant particles, thereby enhancing wave damping (Landau Damping).},
doi = {10.1016/0375-9601(92)91084-5},
url = {https://www.osti.gov/biblio/1178254}, journal = {Physics Letters. A},
issn = {0375-9601},
number = 6,
volume = 161,
place = {United States},
year = {1992},
month = {1}
}