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Title: 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}
}