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Title: Design constraints for rf-driven steady-state tokamak reactors

Abstract

Plasma current density profiles are computed due to electron Landau damping of lower hybrid waves launched into model tokamak density and temperature profiles. The total current and current profile shape are chosen consistent with magnetohydrodynamic equilibrium for a variety of temperature and density distributions and plasma beta values. Surface current equilibria appear attractive and are accessible to waves with n/sub z/ as low as 1.2. By suitably choosing the spectrum location and width it is possible to drive the 9.8 MA current of a 7.0-m reactor with as little as 2.8% of the fusion power recirculated as rf input from the waveguides.

Authors:
Publication Date:
Research Org.:
Argonne National Lab., IL (USA)
OSTI Identifier:
6461216
Report Number(s):
ANL/FPP/TM-120
TRN: 79-010122
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON PLASMA WAVES; LANDAU DAMPING; TOKAMAK TYPE REACTORS; DESIGN; CURRENT DENSITY; EQUILIBRIUM PLASMA; HIGH-FREQUENCY HEATING; HYBRID RESONANCE; MAGNETOHYDRODYNAMICS; PLASMA; DAMPING; FLUID MECHANICS; HEATING; HYDRODYNAMICS; MECHANICS; PLASMA HEATING; PLASMA WAVES; RESONANCE; THERMONUCLEAR REACTORS; 700200* - Fusion Energy- Fusion Power Plant Technology

Citation Formats

Ehst, D A. Design constraints for rf-driven steady-state tokamak reactors. United States: N. p., 1979. Web. doi:10.2172/6461216.
Ehst, D A. Design constraints for rf-driven steady-state tokamak reactors. United States. https://doi.org/10.2172/6461216
Ehst, D A. Thu . "Design constraints for rf-driven steady-state tokamak reactors". United States. https://doi.org/10.2172/6461216. https://www.osti.gov/servlets/purl/6461216.
@article{osti_6461216,
title = {Design constraints for rf-driven steady-state tokamak reactors},
author = {Ehst, D A},
abstractNote = {Plasma current density profiles are computed due to electron Landau damping of lower hybrid waves launched into model tokamak density and temperature profiles. The total current and current profile shape are chosen consistent with magnetohydrodynamic equilibrium for a variety of temperature and density distributions and plasma beta values. Surface current equilibria appear attractive and are accessible to waves with n/sub z/ as low as 1.2. By suitably choosing the spectrum location and width it is possible to drive the 9.8 MA current of a 7.0-m reactor with as little as 2.8% of the fusion power recirculated as rf input from the waveguides.},
doi = {10.2172/6461216},
url = {https://www.osti.gov/biblio/6461216}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {2}
}