Overview of H-mode studies in DIII-D

A major portion of the DIII-D program includes studies of the L-H transition, of the VH-mode, of particle transport and control and of the power-handling capability of a divertor. Significant progress has been made in all of these areas and the aim is to summarize the major results. An increased understanding of the origin of improved confinement in H-mode and in VH-mode discharges has been obtained, good impurity control has been achieved in several operating scenarios, studies of helium transport provide encouraging results from the point of view of reactor design, an actively pumped divertor chamber has controlled the density in H-mode discharges and a radiative divertor is a promising technique for controlling the heat flux from the main plasma.

L. L. Lao | H. E. St. John | E. J. Strait | A. D. Turnbull | C. M. Greenfield | W. A. Peebles | T. W. Petrie | M. R. Wade | R. Maingi | C. C. Klepper | E. A. Lazarus | D. P. Schissel | A. W. Hyatt | C. L. Hsieh | T. S. Taylor | S. J. Thompson | R. J. La Haye | R. D. Wood | G. L. Jackson | K. H. Burrell | G. D. Porter | C. J. Lasnier | R. J. Groebner | John R. Ferron | G. M. Staebler | D. Wroblewski | W. Mandl | N. H. Brooks | W. P. West | J. G. Watkins | Michael J. Schaffer | T. H. Osborne | D. M. Thomas | A. W. Leonard | R. A. Moyer | Ming-Sheng Chu | R. T. Snider | D. L. Hillis | T. N. Carlstrom | E. J. Doyle | C. L. Rettig | S. Konoshima | David N. Hill | T. Petrie | S. Coda | G. Staebler | L. Lao | E. Doyle | T. Osborne | Y. Martin | M. Wade | J. Ferron | K. Burrell | P. Gohil | R. Groebner | A. Hyatt | R. L. Haye | T. Evans | G. Jackson | W. West | E. Lazarus | C. Greenfield | F. Hinton | G. Porter | S. Thompson | A. Leonard | D. Buchenauer | M. Chu | E. Strait | M. Schaffer | A. Turnbull | R. Maingi | R. Moyer | S. Allen | C. Lasnier | N. Brooks | J. Watkins | D. Baker | W. Peebles | M. Mahdavi | H. John | T. Taylor | R. Wood | C. Hsieh | S. Konoshima | Y. B. Kim | D. Hillis | S. L. Allen | P. Gohil | M. A. Mahdavi | Todd Evans | M. E. Rensink | F. L. Hinton | Y. Martin | R. Seraydarian | R. Stambaugh | R. D. Stambaugh | D. A. Buchenauer | R. Jong | R. P. Seraydarian | D. F. Finkenthal | D. Schissel | D. R. Baker | S Coda | J. Cuthbertson | A. H. Futch | J. Hogan | Jung-soo Kim | S. I. Lippmann | T. H. Rhodes | D. Thomas | T. Carlstrom | R. Snider | C. Rettig | C. Klepper | R. Jong | J. Cuthbertson | M. Rensink | D. Wróblewski | W. Mandl | D. Finkenthal | S. Lippmann | D. Hill | A. Futch | J. Hogan | J. Kim

[1]  Tadashi Sekiguchi,et al.  Plasma Physics and Controlled Nuclear Fusion Research , 1987 .

[2]  E. Solano,et al.  The effect of charge-exchange on plasma flows , 1992 .

[3]  G. Gorini,et al.  Local transport studies in fusion plasmas : proceedings of the workshop held at Villa Monastero, Varenna, Italy, 30 August-3 September, 1993 , 1993 .

[4]  E. C. Crume,et al.  Bifurcation theory of poloidal rotation in tokamaks: A model for L-H transition. , 1989, Physical review letters.

[5]  E. Doyle,et al.  Two-stage turbulence suppression and E × B velocity shear measured at the L-H transition , 1993 .

[6]  E. Doyle,et al.  LETTER: Edge turbulence reduction at the L-H transition in DIII-D , 1993 .

[7]  Paul W. Terry,et al.  Influence of sheared poloidal rotation on edge turbulence , 1990 .

[8]  M. Wade,et al.  Fuel ion rotation measurement and its implications on H-mode theories , 1993 .

[9]  K. Burrell,et al.  Transport and Fluctuations in the Interior of DIII-D Plasmas , 1993 .

[10]  D. N. Hill,et al.  Particle transport studies for single-null divertor discharges in DIII-D , 1993 .

[11]  T. Evans,et al.  Impurity penetration and transport during VH-mode on DIII-D , 1992 .

[12]  Thomas C. Simonen.  Future directions of the DIII-D tokamak program , 1992 .

[13]  L. L. Lao,et al.  Very high confinement discharges in DIII‐D after boronization , 1992 .

[14]  P. Stott,et al.  H-mode energy confinement scaling from the DIII-D and JET tokamaks , 1991 .

[15]  K. Burrell,et al.  Changes in local confinement after an L-H transition in DIII-D , 1992 .

[16]  E. Doyle,et al.  Physics of the L-mode to H-mode transition in tokamaks , 1992 .

[17]  P. Diamond,et al.  Neoclassical poloidal and toroidal rotation in tokamaks , 1991 .

[18]  R. J. Groebner,et al.  An emerging understanding of H-mode discharges in tokamaks , 1993 .

[19]  T. Petrie,et al.  The effect of ELMs on edge plasma scaling in DIII-D , 1992 .

[20]  D. N. Hill,et al.  Divertor heat flux reduction by D2 injection in DIII-D , 1992 .

[21]  G. Jackson,et al.  Particle control in DIII-D with helium glow discharge conditioning , 1990 .

[22]  E. Doyle,et al.  Microturbulence damping mechanisms in the DIII‐D tokamak* , 1993 .