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LH Wave Absorption by Mode Conversion Near ion Cyclotron Harmonics

Description: Numerical studies of the dispersion relation near the lower-hybrid frequency in an inhomogeneous plasma (..delta.. n, ..delta.. T, ..delta.. B) show that portions of an incident lower-hybrid wave spectrum undergo successive but partial mode conversions to warm-plasma waves in the presence of ion cyclotron harmonics. Wave absorption beyond the first mode conversion occurs near an ion cyclotron harmonic where ion Landau damping is enhanced. A second-order dispersion relation numerically in good a… more
Date: February 1, 1981
Creator: Ko, K.; Bers, A. & Fuchs, V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Radial Effects in Heating and Thermal Stability of a Sub-ignited Tokamak

Description: The existence of thermally stable sub-ignited equilibria of a tokamak reactor, sustained in operation by a feedback-controlled supplementary heating source, is demonstrated. The establishment of stability depends on a number of radially non-uniform, nonlinear processes whose effect is analyzed. One-dimensional (radial) stability analyses of model transport equations, together with numerical results from a 1-D transport code, are used in studying the heating of DT-plasmas in the thermonuclear re… more
Date: February 1, 1982
Creator: Fuchs, V.; Shoucri, M. M.; Thibaudeau, G.; Harten, L. & Bers, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

RF-driven Tokamak Reactor with Sub-ignited, Thermally Stable Operation

Description: A Radio-Frequency Driven Tokamak Reactor (RFDTR) can use RF-power, programmed by a delayed temperature measurement, to thermally stabilize a power equilibrium below ignition, and to drive a steady state current. We propose the parameters for such a device generating approx. = 1600 MW thermal power and operating with Q approx. = 40 (= power out/power in). A one temperature zero-dimensional model allows simple analytical formulation of the problem. The relevance of injected impurities for locatin… more
Date: February 1, 1981
Creator: Harten, L. P.; Bers, A.; Fuchs, V. & Shoucri, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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