Ion radial transport induced by ICRF waves in tokamaks
Abstract
The wave-induced fluxes of energetic-trapped ions during ICRF heating of tokamak plasmas are calculated using quasilinear equations. A simple single particle model of this transport mechanism is also given. Both a convective flux proportional to k/sub phi/vertical bar E/sub +/vertical bar/sup 2/ and a diffusive flux proportional to k/sub phi//sup 2/vertical bar E/sub +/vertical bar/sup 2/ are found. Here, k/sub phi/ is the toroidal wave number and E/sub +/ is the left-hand polarized wave field. The convective flux may become significant for large k/sub phi/ if the wave spectrum is asymmetric in k/sub phi/. But for the conditions of most previous experiments, these calculations indicate that radial transport driven directly by the ICRF wave is unimportant.
- Authors:
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- OSTI Identifier:
- 6158932
- Report Number(s):
- PPPL-2441
ON: DE87013204; TRN: 87-031608
- DOE Contract Number:
- AC02-76CH03073
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COLLISIONLESS PLASMA; ICR HEATING; QUASILINEAR PROBLEMS; ION WAVES; BOLTZMANN-VLASOV EQUATION; CHARGED-PARTICLE TRANSPORT THEORY; ELECTROMAGNETIC FIELDS; WAVE FUNCTIONS; DIFFERENTIAL EQUATIONS; EQUATIONS; FUNCTIONS; HEATING; HIGH-FREQUENCY HEATING; PARTIAL DIFFERENTIAL EQUATIONS; PLASMA; PLASMA HEATING; PLASMA WAVES; TRANSPORT THEORY; 700101* - Fusion Energy- Plasma Research- Confinement, Heating, & Production; 700108 - Fusion Energy- Plasma Research- Wave Phenomena
Citation Formats
Chen, L, Vaclavik, J, and Hammett, G W. Ion radial transport induced by ICRF waves in tokamaks. United States: N. p., 1987.
Web. doi:10.2172/6158932.
Chen, L, Vaclavik, J, & Hammett, G W. Ion radial transport induced by ICRF waves in tokamaks. United States. https://doi.org/10.2172/6158932
Chen, L, Vaclavik, J, and Hammett, G W. 1987.
"Ion radial transport induced by ICRF waves in tokamaks". United States. https://doi.org/10.2172/6158932. https://www.osti.gov/servlets/purl/6158932.
@article{osti_6158932,
title = {Ion radial transport induced by ICRF waves in tokamaks},
author = {Chen, L and Vaclavik, J and Hammett, G W},
abstractNote = {The wave-induced fluxes of energetic-trapped ions during ICRF heating of tokamak plasmas are calculated using quasilinear equations. A simple single particle model of this transport mechanism is also given. Both a convective flux proportional to k/sub phi/vertical bar E/sub +/vertical bar/sup 2/ and a diffusive flux proportional to k/sub phi//sup 2/vertical bar E/sub +/vertical bar/sup 2/ are found. Here, k/sub phi/ is the toroidal wave number and E/sub +/ is the left-hand polarized wave field. The convective flux may become significant for large k/sub phi/ if the wave spectrum is asymmetric in k/sub phi/. But for the conditions of most previous experiments, these calculations indicate that radial transport driven directly by the ICRF wave is unimportant.},
doi = {10.2172/6158932},
url = {https://www.osti.gov/biblio/6158932},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 01 00:00:00 EDT 1987},
month = {Fri May 01 00:00:00 EDT 1987}
}