skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tritium minority heating with mode conversion of fast waves

Abstract

A new ion-heating scenario in tokamak plasmas, based on cyclotron damping of ion Bernstein waves (IBWs) by tritium minority at the first ion cyclotron harmonic (i.e., omega=2OMEGA{sub cT}), is proposed. The IBWs are coupled by mode conversion of fast magnetosonic waves in a D-H(T) (tritium minority in hydrogen-deuterium) plasma. The mode conversion layer is located near the center of the plasma column as well as the resonant layer of the tritium minority. A possible scenario for the JET (Joint European Torus) tokamak [J. Wesson, JET Report No. 99, 1999], based on the present idea, has been analyzed by means of the numerical codes TORIC and SSFPQL (toroidal ion cyclotron and steady state Fokker-Planck quasilinear) [M. Brambilla, Nucl. Fusion 34, 1121 (1994); Plasma Phys. Controlled Fusion 41, 1 (1999)]. As a result, tritium ions are accelerated up to energies close to the peak value of the DT cross section and steady state breakeven condition (Qapprox =1.3) can be reached with 25% minority tritium concentration.

Authors:
;  [1]
  1. Euratom ENEA Association, Via Enrico Fermi 45, CP65, 00044 Frascati (Rome) (Italy)
Publication Date:
OSTI Identifier:
21389121
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 17; Journal Issue: 7; Other Information: DOI: 10.1063/1.3459943; (c) 2010 American Institute of Physics; Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BERNSTEIN MODE; BREAKEVEN; DEUTERIUM; FOKKER-PLANCK EQUATION; HIGH-FREQUENCY HEATING; JET TOKAMAK; MAGNETOACOUSTIC WAVES; MODE CONVERSION; PLASMA CONFINEMENT; PLASMA WAVES; STEADY-STATE CONDITIONS; TRITIUM; TRITIUM IONS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHARGED PARTICLES; CLOSED PLASMA DEVICES; CONFINEMENT; DIFFERENTIAL EQUATIONS; ENERGY BALANCE; EQUATIONS; HEATING; HYDROGEN ISOTOPES; HYDROMAGNETIC WAVES; IONS; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; OSCILLATION MODES; PARTIAL DIFFERENTIAL EQUATIONS; PLASMA HEATING; RADIOISOTOPES; STABLE ISOTOPES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; YEARS LIVING RADIOISOTOPES

Citation Formats

Castaldo, Carmine, and Cardinali, Alessandro. Tritium minority heating with mode conversion of fast waves. United States: N. p., 2010. Web. doi:10.1063/1.3459943.
Castaldo, Carmine, & Cardinali, Alessandro. Tritium minority heating with mode conversion of fast waves. United States. doi:10.1063/1.3459943.
Castaldo, Carmine, and Cardinali, Alessandro. Thu . "Tritium minority heating with mode conversion of fast waves". United States. doi:10.1063/1.3459943.
@article{osti_21389121,
title = {Tritium minority heating with mode conversion of fast waves},
author = {Castaldo, Carmine and Cardinali, Alessandro},
abstractNote = {A new ion-heating scenario in tokamak plasmas, based on cyclotron damping of ion Bernstein waves (IBWs) by tritium minority at the first ion cyclotron harmonic (i.e., omega=2OMEGA{sub cT}), is proposed. The IBWs are coupled by mode conversion of fast magnetosonic waves in a D-H(T) (tritium minority in hydrogen-deuterium) plasma. The mode conversion layer is located near the center of the plasma column as well as the resonant layer of the tritium minority. A possible scenario for the JET (Joint European Torus) tokamak [J. Wesson, JET Report No. 99, 1999], based on the present idea, has been analyzed by means of the numerical codes TORIC and SSFPQL (toroidal ion cyclotron and steady state Fokker-Planck quasilinear) [M. Brambilla, Nucl. Fusion 34, 1121 (1994); Plasma Phys. Controlled Fusion 41, 1 (1999)]. As a result, tritium ions are accelerated up to energies close to the peak value of the DT cross section and steady state breakeven condition (Qapprox =1.3) can be reached with 25% minority tritium concentration.},
doi = {10.1063/1.3459943},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 7,
volume = 17,
place = {United States},
year = {2010},
month = {7}
}