TY - JOUR
T1 - ITER test blanket module error field simulation experiments at DIII-D
JF - Nuclear Fusion
Y1 - 2011
A1 - Schaffer, M. J.
A1 - Snipes, J. A.
A1 - Gohil, P.
A1 - P. de Vries
A1 - Evans, T. E.
A1 - Fenstermacher, M.E.
A1 - Gao, X.
A1 - Garofalo, A. M.
A1 - Gates, D. A.
A1 - Greenfield, C.M.
A1 - Heidbrink, W. W.
A1 - Kramer, G. J.
A1 - La Haye, R. J.
A1 - Liu, S.
A1 - Loarte, A.
A1 - M F F Nave
A1 - Osborne, T. H.
A1 - Oyama, N.
A1 - Park, J. K.
A1 - Ramasubramanian, N.
A1 - Reimerdes, H.
A1 - Saibene, G.
A1 - Salmi, A.
A1 - Shinohara, K.
A1 - Spong, D. A.
A1 - Solomon, W. M.
A1 - Tala, T.
A1 - Zhu, Y. B.
A1 - Boedo, J. A.
A1 - Chuyanov, V.
A1 - Doyle, E. J.
A1 - Jakubowski, M.
A1 - Jhang, H.
A1 - Nazikian, R. M.
A1 - Pustovitov, V. D.
A1 - Schmitz, O.
A1 - Srinivasan, R.
A1 - Taylor, T. S.
A1 - Wade, M. R.
A1 - You, K. I.
A1 - Zeng, L.
KW - CONFINEMENT
KW - D TOKAMAK
KW - FERRITIC STEEL WALL
KW - JFT-2M
KW - PLASMA
AB - Experiments at DIII-D investigated the effects of magnetic error fields similar to those expected from proposed ITER test blanket modules (TBMs) containing ferromagnetic material. Studied were effects on: plasma rotation and locking, confinement, L-H transition, the H-mode pedestal, edge localized modes (ELMs) and ELM suppression by resonant magnetic perturbations, energetic particle losses, and more. The experiments used a purpose-built three-coil mock-up of two magnetized ITER TBMs in one ITER equatorial port. The largest effect was a reduction in plasma toroidal rotation velocity v across the entire radial profile by as much as Delta upsilon/upsilon similar to 60% via non-resonant braking. Changes to global Delta n/n, Delta beta/beta and Delta H(98)/H(98) were similar to 3 times smaller. These effects are stronger at higher beta. Other effects were smaller. The TBM field increased sensitivity to locking by an applied known n = 1 test field in both L-and H-mode plasmas. Locked mode tolerance was completely restored in L-mode by re-adjusting the DIII-D n = 1 error field compensation system. Numerical modelling by IPEC reproduces the rotation braking and locking semi-quantitatively, and identifies plasma amplification of a few n = 1 Fourier harmonics as the main cause of braking. IPEC predicts that TBM braking in H-mode may be reduced by n = 1 control. Although extrapolation from DIII-D to ITER is still an open issue, these experiments suggest that a TBM-like error field will produce only a few potentially troublesome problems, and that they might be made acceptably small.
VL - 51
SN - 0029-5515
U1 - FP
U2 - PDG
U5 - 9bef819632bd417751d69dad6c92f69a
ER -
TY - JOUR
T1 - Recent progress on the development and analysis of the ITPA global H-mode confinement database
JF - Nuclear Fusion
Y1 - 2007
A1 - McDonald, D. C.
A1 - Cordey, J. G.
A1 - Thomsen, K.
A1 - Kardaun, Ojwf
A1 - Snipes, J. A.
A1 - Greenwald, M.
A1 - Sugiyama, L.
A1 - Ryter, F.
A1 - Kus, A.
A1 - Stober, J.
A1 - DeBoo, J. C.
A1 - Petty, C. C.
A1 - Bracco, G.
A1 - Romanelli, M.
A1 - Cui, Z.
A1 - Liu, Y.
A1 - Miura, Y.
A1 - Shinohara, K.
A1 - Tsuzuki, K.
A1 - Kamada, Y.
A1 - Takizuka, T.
A1 - Urano, H.
A1 - Valovic, M.
A1 - Akers, R.
A1 - Brickley, C.
A1 - Sykes, A.
A1 - Walsh, M. J.
A1 - Kaye, S. M.
A1 - Bush, C.
A1 - Hogeweij, D.
A1 - Martin, Y. R.
A1 - Cote, A.
A1 - Pacher, G.
A1 - Ongena, J.
A1 - Imbeaux, F.
A1 - Hoang, G. T.
A1 - Lebedev, S.
A1 - Chudnovskiy, A.
A1 - Leonov, V.
VL - 47
SN - 0029-5515
UR - ://000245730600001
N1 - McDonald, D. C. Cordey, J. G. Thomsen, K. Kardaun, O. J. W. F. Snipes, J. A. Greenwald, M. Sugiyama, L. Ryter, F. Kus, A. Stober, J. DeBoo, J. C. Petty, C. C. Bracco, G. Romanelli, M. Cui, Z. Liu, Y. Miura, Y. Shinohara, K. Tsuzuki, K. Kamada, Y. Takizuka, T. Urano, H. Valovic, M. Akers, R. Brickley, C. Sykes, A. Walsh, M. J. Kaye, S. M. Bush, C. Hogewei, D. Martin, Y. R. Cote, A. Pacher, G. Ongena, J. Imbeaux, F. Hoang, G. T. Lebedev, S. Chudnovskiy, A. Leonov, V.
U1 - Fusion Physics
U2 - Computational Plasma Physics
U5 - c2c36cbbdadf378187a797952e9dd4b4
ER -
TY - JOUR
T1 - Scaling of the energy confinement time with beta and collisionality approaching ITER conditions
JF - Nuclear Fusion
Y1 - 2005
A1 - Cordey, J. G.
A1 - Thomsen, K.
A1 - Chudnovskiy, A.
A1 - Kardaun, Ojwf
A1 - Takizuka, T.
A1 - Snipes, J. A.
A1 - Greenwald, M.
A1 - Sugiyama, L.
A1 - Ryter, F.
A1 - Kus, A.
A1 - Stober, J.
A1 - DeBoo, J. C.
A1 - Petty, C. C.
A1 - Bracco, G.
A1 - Romanelli, M.
A1 - Cui, Z.
A1 - Liu, Y.
A1 - McDonald, D. C.
A1 - Meakins, A.
A1 - Miura, Y.
A1 - Shinohara, K.
A1 - Tsuzuki, K.
A1 - Kamada, Y.
A1 - Urano, H.
A1 - Valovic, M.
A1 - Akers, R.
A1 - Brickley, C.
A1 - Sykes, A.
A1 - Walsh, M. J.
A1 - Kaye, S. M.
A1 - Bush, C.
A1 - Hogeweij, D.
A1 - Martin, Y.
A1 - Cote, A.
A1 - Pacher, G.
A1 - Ongena, J.
A1 - Imbeaux, F.
A1 - Hoang, G. T.
A1 - Lebedev, S.
A1 - Leonov, V.
VL - 45
SN - 0029-5515
UR - ://000232350100007
U1 - Fusion Physics
U2 - Computational Plasma Physics
U5 - 8f62b9d1edaeb78fac9542d0d53f27f7
ER -
TY - JOUR
T1 - ELM moderation with ICRF heating on JET
JF - Plasma Physics and Controlled Fusion
Y1 - 2002
A1 - G. P. Maddison
A1 - Snipes, J. A.
A1 - Chareau, J. M.
A1 - Conway, G. D.
A1 - Hutchinson, I. H.
A1 - Ingesson, L. C.
A1 - Koslowski, H. R.
A1 - Loarte, A.
A1 - Lomas, P. J.
A1 - Mantsinen, M. J.
A1 - Matthews, G. F.
A1 - Meneses, L.
A1 - M F F Nave
A1 - Righi, E.
A1 - Saibene, G.
A1 - Sartori, R.
A1 - Sauter, O.
A1 - Zastrow, K. D.
VL - 44
SN - 0741-3335
UR - ://000178415900013
U1 - Fusion Physics
U2 - Instrumentation development
U5 - 3bf8aa09c229d2e09cee76b9f4d573d2
ER -