Overview of ECRH experimental results

A review of the present status of electron cyclotron heating and current drive experiments in toroidal fusion devices is presented. In addition to basic heating and current drive studies the review also addresses advances in wave physics and the application of electron cyclotron waves for instability control, transport studies, pre-ionization/start-up assist, etc. A comprehensive overview is given with particular emphasis on recent advances since the major review of Erckmann and Gasparino (1994) ( 36 1869), including results from the latest generation of high-power, high-frequency experiments.

[1]  V. I. Belousov,et al.  Second harmonic electron cyclotron current drive experiments on T-10 , 1995 .

[2]  J. Harris,et al.  High power density electron cyclotron experiments in the L2M stellarator , 1997 .

[3]  I. Fidone,et al.  Electron cyclotron heating for assisted breakdown in next step tokamaks , 1994 .

[4]  T N Todd MHD control and ECCD in Compass-D , 1993 .

[5]  An Investigation of Coupled Energy and Particle Transport , 1994 .

[6]  Snider,et al.  Observation of H-mode confinement in the DIII-D tokamak with electron cyclotron heating. , 1988, Physical review letters.

[7]  V. Erckmann,et al.  Electron cyclotron resonance heating and current drive in toroidal fusion plasmas , 1994 .

[8]  F. Sardei,et al.  140 GHz electron cyclotron resonance heating experiments at the W7-AS stellarator , 1995 .

[9]  Y. Esipchuk Investigation of ECCD on the first and second harmonics ECR , 1995 .

[10]  Cho,et al.  Plasma current generation and sustainment by electron cyclotron waves, in the WT-2 tokamak. , 1986, Physical review letters.

[11]  C. Forest,et al.  Investigation of the second harmonic electron cyclotron current drive efficiency on the T‐10 tokamak* , 1994 .

[12]  J. Preinhaelter,et al.  Penetration of high-frequency waves into a weakly inhomogeneous magnetized plasma at oblique incidence and their transformation to Bernstein modes , 1973, Journal of Plasma Physics.

[13]  M. Valovič,et al.  H-modes on COMPASS-D with high-power ECRH , 1998 .

[14]  ECRH-Group,et al.  Resonant and Nonresonant Electron Cyclotron Heating at Densities above the Plasma Cutoff by O-X-B Mode Conversion at the W7-As Stellarator , 1997 .

[15]  Allen H. Boozer,et al.  Creating an asymmetric plasma resistivity with waves , 1980 .

[16]  M. Valovic,et al.  The H-mode in COMPASS-D , 1996 .

[17]  G. Giruzzi,et al.  Electron temperature diagnostic in tokamak plasmas by microwave transmission , 1996 .

[18]  Mori,et al.  H mode observed in the JFT-2M tokamak with edge heating by electron cyclotron waves. , 1989, Physical review letters.

[19]  E. Hooper,et al.  Poloidal field measurements during sawteeth and disruptions on MTX , 1994 .

[20]  G. Hogeweij,et al.  Radial profile and q dependence of electron heat diffusion measured with ECH modulation in RTP , 1996 .

[21]  T. C. Luce,et al.  Inward transport of energy during off-axis heating on the DIII-D tokamak , 1994 .

[22]  R. Cano,et al.  Electron cyclotron emission and absorption in fusion plasmas , 1983 .

[23]  C. D. Warrick,et al.  ECRH-assisted start-up in ITER , 1996 .

[24]  Effects of radial transport on current drive in tokamaks , 1991 .

[25]  M. W. Alcock,et al.  ECRH current drive studies in the CLEO tokamak , 1988 .

[26]  Brown,et al.  Nonlinear absorption of high power free-electron-laser-generated microwaves at electron cyclotron resonance heating frequencies in the MTX tokamak. , 1994, Physical review letters.

[27]  F. Sardei,et al.  Physics studies in W7-AS , 1994 .

[28]  V. Alikaev,et al.  The m=2, n=1 mode suppression by ECRH on the T-10 tokamak , 1997 .

[29]  L. L. Lao,et al.  Recent results from DIII-D and their implications for next generation tokamaks , 1990 .

[30]  Iter Confinement Database Energy confinement scaling and the extrapolation to ITER , 1997 .

[31]  H. Ogawa,et al.  Experimental observation of local outward particle flux induced by electron cyclotron resonance heating , 1995 .

[32]  H. Matsumoto,et al.  Transition from the L-mode to the H-mode by electron cyclotron heating of a tokamak edge plasma , 1988 .

[33]  G. Hogeweij,et al.  Evidence of inhomogeneous thermal transport in RTP , 1996 .

[34]  M. M. Dremin,et al.  Electron cyclotron current drive experiments on T-10 , 1992 .

[35]  Y. Uesugi,et al.  Second harmonic electron cyclotron heating of lower hybrid current driven plasma in JFT-2M , 1991 .

[36]  S. Ide,et al.  Non-inductive current drive using second harmonic electron cyclotron waves on the WT-3 tokamak , 1991 .

[37]  H. Sanuki,et al.  Experimental study on density pump-out due to electron cyclotron heating in the compact helical system heliotron - torsatron , 1995 .

[38]  B. P. Duval,et al.  X- and O-mode electron cyclotron heating breakdown and startup in TCA , 1992 .

[39]  R. Prater,et al.  Recent results on the application of electron cyclotron heating to tokamaks , 1990 .

[40]  Polman,et al.  Steady-state hollow electron temperature profiles in the Rijnhuizen Tokamak Project. , 1996, Physical review letters.

[41]  Geist,et al.  H mode of the W 7-AS stellarator. , 1993, Physical review letters.

[42]  Lao,et al.  Determination of the noninductive current profile in tokamak plasmas. , 1994, Physical review letters.

[43]  F. C. Schüller,et al.  Electron thermal transport barrier and magnetohydrodynamic activity observed in Tokamak plasmas with negative central shear , 1997 .

[44]  V. Erckmann,et al.  Kinetic modelling of the ECRH power deposition in W7-AS , 1997 .

[45]  G. Giruzzi,et al.  Asymmetric wave transmission during electron cyclotron resonant heating , 1995 .

[46]  V. Petrillo,et al.  Modelling of start-up assist by electron cyclotron waves for large-size tokamaks , 1988 .

[47]  Anthony B. Murphy,et al.  Initial operation of the Wendelstein 7AS advanced stellarator , 1989 .

[48]  C. D. Warrick,et al.  Electron cyclotron heating and current drive in ITER , 1997 .

[49]  V. Erckmann,et al.  H-mode of W7-AS stellarator , 1994 .

[50]  J. Konings,et al.  Simultaneous analysis of ECH modulation and sawtooth activity in the plasma core of the RTP tokamak , 1994 .

[51]  P. V. Savrukhin,et al.  Coupling of internal m=1 and m=2 modes at density limit disruptions in the T-10 tokamak , 1994 .

[52]  H. Hartfuss,et al.  Fast transport changes and power degradation in the W7-AS stellarator , 1996 .

[53]  Steve C. Chiu,et al.  Fast wave and electron cyclotron current drive in the DIII-D tokamak , 1995 .

[54]  E. A. Lazarus,et al.  Low voltage Ohmic and electron cyclotron heating assisted startup in DIII-D , 1991 .

[55]  Barth,et al.  Plasma filamentation in the Rijnhuizen tokamak RTP. , 1994, Physical review letters.