Zobrazeno 1 - 10
of 40
pro vyhledávání: '"P.M Stubberfield"'
Autor:
The ITER 1D Modelling Working Group, D Boucher, J.W Connor, W.A Houlberg, M.F Turner, G Bracco, A Chudnovskiy, J.G Cordey, M.J Greenwald, G.T Hoang, G.M.D Hogeweij, S.M Kaye, J.E Kinsey, D.R Mikkelsen, J Ongena, D.R Schissel, H Shirai, J Stober, P.M Stubberfield, R.E Waltz, J Weiland
Publikováno v:
ResearcherID
An international multi-tokamak profile database has been assembled, constituting a representative set of reference tokamak discharges for the purpose of testing local transport models against well documented data. In particular, it will allow one to
Autor:
A. C. C. Sips, C. Gormezano, B. Tubbing, Y. Baranov, C. D. Challis, J.G. Cordey, M. von Hellermann, D.F.H. Start, J.C.M. de Haas, A. Howman, F. X. Söldner, L.-G. Eriksson, D.J. Ward, G.A. Cottrell, W. Zwingmann, G.J. Sadler, M. J. Mantsinen, D.P. O'Brien, P.M. Stubberfield, T.C. Luce
Publikováno v:
Plasma Physics and Controlled Fusion. 40:1251-1268
Plasmas with the highest deuterium fusion neutron rates yet achieved in JET have been produced by combining a hollow or flat central current profile with a high-confinement (H-mode) edge. In these discharges, lower hybrid current drive (LHCD) and ion
Autor:
D.G. Muir, P.M. Stubberfield, B. Balet, J.P. Christiansen, J.G. Cordey, K. Thomsen, C. Gowers, E. Righi, David Campbell, G. Saibene, C. D. Challis, C. Gormezano
Publikováno v:
Plasma Physics and Controlled Fusion. 38:A67-A75
The theoretical basis of the dimensionless parameter scaling technique is derived and the limitations in its application are discussed. The use of the technique is illustrated by the production on JET of a steady-state ITER similarity pulse having th
Autor:
J.P. Christiansen, L. Porte, J.C.M. de Haas, P.M. Stubberfield, M.F. Stamp, J.K. Ehrenberg, R. Giannella, C. Gormezano, K. Thomsen, G. Saibene, D.F.H. Start, C.G. Lowry, David Campbell, C. D. Challis, J.G. Cordey, M. von Hellermann, P. Nielsen, B. Balet, C. Gowers, E. Righi, P.J. Harbour
Publikováno v:
Plasma Physics and Controlled Fusion. 38:1237-1242
The results of a series of ITER simulation experiments on JET are described. A series of H-mode threshold experiments are shown to reproduce one of the standard power threshold scaling expressions that is being used to predict the power threshold in
Autor:
L. Porte, P.M. Stubberfield, David Campbell, D.G. Muir, D.V. Bartlett, A. Taroni, A. Loarte, S. Ali-Arshad, K. Thomsen, A.L. Colton, V.V. Parail, George Vayakis, S.V. Neudachin, Richard D. Gill, J.G. Cordey, M. von Hellermann, A. C. C. Sips, E Springmann, A.E. Costley
Publikováno v:
Nuclear Fusion. 35:505-520
The evolution of the energy, momentum and particle transport through the L-H transition are determined in JET NBI heated discharges. Both normal and periodic L-H transitions are studied. It is found that all of the transport coefficients drop at the
Autor:
Roger Reichle, J. O'Rourke, B. Balet, Francesco Porcelli, C. D. Challis, P.M. Stubberfield, B. Alper, D. N. Borba, P. Smeulders, T. C. Hender, S Ali-Arshad, G. T. A. Huysmans, L. Porte, M. von Hellermann, Wolfgang Kerner, G.J. Sadler, M. F. F. Nave, A. C. C. Sips, G. J. Kramer, W. Zwingmann, J.A. Wessom, D. Stork, H.J. De Blank
Publikováno v:
Nuclear Fusion. 35:409-429
The MHD effects observed in the hot ion H modes in the pre-divertor configuration of JET, including those generated in the preliminary tritium experiment, are described. Some observations were found to be similar to those in high beta regimes while o
Autor:
T. C. Hender, B. Wolle, J. O'Rourke, D.P. O'Brien, F.B. Marcus, B. Balet, H. W. Morsi, G. L. Schmidt, B. Alper, G.J. Sadler, K. D. Lawson, P. Smeulders, M. Bures, S. Ali-Arshad, P.M. Stubberfield, L. C. Appel, H.J. De Blank, L. Lauro-Taroni, D. Stork, R. Giannella, W. Zwingmann, R. König, B. De Esch, P. Kupschus, M. Mattioli
Publikováno v:
Nuclear Fusion. 35:225-242
Pellet enhanced performance (PEP) has been observed in a number of JET discharges at various plasma conditions, in both L and H modes, with the H multiplier (the confinement enhancement factor over the Goldston confinement time) covering the range fr
Autor:
A. C. C. Sips, H. R. Wilson, D.P. O'Brien, N. Deliyanakis, L. Porte, B. Balet, P.M. Stubberfield, C. M. Greenfield
Publikováno v:
Plasma Physics and Controlled Fusion. 36:1159-1169
The nature and behaviour of the VH-mode, as observed in the JET tokamak, have been investigated; this is a regime of enhanced energy confinement which is often attained during the H-mode phase, following the disappearance of the ELMs. As a result of
Autor:
C. D. Challis, D. Stork, K. Thomsen, N. Deliyanakis, J.G. Cordey, J.J. Ellis, Roger Reichle, C. M. Greenfield, D.G. Muir, B. Balet, P.R. Thomas, N. C. Hawkes, David Campbell, D P O'Brien, P.M. Stubberfield
Publikováno v:
Plasma Physics and Controlled Fusion. 36:A243-A248
Plasmas with the energy confinement time enhanced by a factor 1.4 to 2.1 over the ITER93H-P H-mode scaling expression have been obtained in 3 different H-mode regimes (excluding pellet injection) in JET. The phase of enhanced confinement has strong s
Autor:
G. Vayakis, K. Thomsen, D.G. Muir, A. C. C. Sips, A.E. Costley, J.G. Cordey, M. von Hellermann, E Springmann, S Ali-Arshad, A.L. Colton, A.W. Edwards, L. Porte, P.M. Stubberfield, A. Taroni, V.V. Parail, David Campbell, S V Neudatchin, D.V. Bartlett
Publikováno v:
Plasma Physics and Controlled Fusion. 36:A267-A272
The change in thermal transport across the L to H transition is studied in detail for those JET high performance H-modes which have a very fast transition. It is found that in these pulses the transport changes very rapidly (