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Collisional resonance function in discrete-resonance quasilinear plasma systems
Abstract
In this paper, a method is developed to analytically determine the resonance broadening function in quasilinear theory from first principles, due to either Krook or Fokker-Planck scattering collisions of marginally unstable plasma systems where discrete resonance instabilities are excited without any mode overlap. It is demonstrated that a quasilinear system that employs the calculated broadening functions reported here systematically recovers the growth rate and mode saturation levels for near-threshold plasmas previously calculated from nonlinear kinetic theory. The distribution function is also calculated, which enables precise determination of the characteristic collisional resonance width.
- Authors:
-
[1];
[1];
[1];
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Univ. of Texas, Austin, TX (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1580577
- Alternate Identifier(s):
- OSTI ID: 1576864
- Grant/Contract Number:
- AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 12; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Duarte, V. N., Gorelenkov, N. N., White, R. B., and Berk, H. L. Collisional resonance function in discrete-resonance quasilinear plasma systems. United States: N. p., 2019.
Web. doi:10.1063/1.5129260.
Duarte, V. N., Gorelenkov, N. N., White, R. B., & Berk, H. L. Collisional resonance function in discrete-resonance quasilinear plasma systems. United States. doi:10.1063/1.5129260.
Duarte, V. N., Gorelenkov, N. N., White, R. B., and Berk, H. L. Tue .
"Collisional resonance function in discrete-resonance quasilinear plasma systems". United States. doi:10.1063/1.5129260.
@article{osti_1580577,
title = {Collisional resonance function in discrete-resonance quasilinear plasma systems},
author = {Duarte, V. N. and Gorelenkov, N. N. and White, R. B. and Berk, H. L.},
abstractNote = {In this paper, a method is developed to analytically determine the resonance broadening function in quasilinear theory from first principles, due to either Krook or Fokker-Planck scattering collisions of marginally unstable plasma systems where discrete resonance instabilities are excited without any mode overlap. It is demonstrated that a quasilinear system that employs the calculated broadening functions reported here systematically recovers the growth rate and mode saturation levels for near-threshold plasmas previously calculated from nonlinear kinetic theory. The distribution function is also calculated, which enables precise determination of the characteristic collisional resonance width.},
doi = {10.1063/1.5129260},
journal = {Physics of Plasmas},
number = 12,
volume = 26,
place = {United States},
year = {2019},
month = {12}
}
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DOI: 10.1063/1.5129260
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