TY - JOUR
T1 - Hybrid H-mode scenario with nitrogen seeding and type III ELMs in JET
JF - Plasma Physics and Controlled Fusion
Y1 - 2008
A1 - Corre, Y.
A1 - Joffrin, E.
A1 - Monier-Garbet, P.
A1 - Andrew, Y.
A1 - Arnoux, G.
A1 - Beurskens, M.
A1 - Brezinsek, S.
A1 - Brix, M.
A1 - Buttery, R.
A1 - Coffey, I.
A1 - Crombe, K.
A1 - de la Luna, E.
A1 - Felton, R.
A1 - Giroud, C.
A1 - Hacquin, S.
A1 - Hobirk, J.
A1 - Huber, A.
A1 - Imbeaux, F.
A1 - Jachmich, S.
A1 - Kempenaars, M.
A1 - X. Litaudon
A1 - Leggate, H.
A1 - Loarer, T.
A1 - Maddison, G.
A1 - Rachlew, E.
A1 - Rapp, J.
A1 - Sauter, O.
A1 - Savchkov, A.
A1 - Telesca, G.
A1 - Widdowson, A.
A1 - Zastrow, K. D.
A1 - Zimmermann, O.
KW - ASDEX-UPGRADE
KW - CONFINEMENT
KW - DIII-D
KW - EDGE
KW - GAS BOX DIVERTOR
KW - HIGH-DENSITY
KW - INTEGRATED SCENARIO
KW - JOINT EUROPEAN TORUS
KW - STATE ADVANCED SCENARIOS
KW - THOMSON SCATTERING
AB - The performance of the 'hybrid' H-mode regime (long pulse operation with high neutron fluency) has been extensively investigated in JET during the 2005-2007 experimental campaign up to normalized pressure beta(N) = 3, toroidal magnetic field B-t = 1.7T, with type I ELMs plasma edge conditions. The optimized external current drive sources, self-generated non-inductive bootstrap current and plasma core stability properties provide a good prospect of achieving a high fusion gain at reduced plasma current for long durations in ITER. One of the remaining issues is the erosion of the divertor target plates associated with the type I ELM regime. A possible solution could be to operate with a plasma edge in the type III ELM regime (reduced transient and stationary heat loads) obtained with impurity seeding. An integrated hybrid type III ELM regime with a normalized pressure beta(N) = 2.6 (PNBI similar to 20-22 MW) and a thermal confinement factor of H-98* 98(y, 2) similar to 0.83 has been recently successfully developed on JET with nitrogen seeding. This scenario shows good plasma edge condition (compatible with the future ITER-like wall on JET) and moderate MHD activity. In this paper, we report on the experimental development of the scenario (with plasma current I-p = 1.7MA and magnetic field B-t = 1.7T) and the trade-off between heat load reduction at the target plates and global confinement due to nitrogen seeding and type III ELM working conditions.
VL - 50
SN - 0741-3335
UR - ://000260311700012
N1 - ISI Document Delivery No.: 364BRTimes Cited: 0Cited Reference Count: 42
U1 - Fusion Physics
U5 - 05ed723ff0cf9e79390d0257e9be4d4d
ER -
TY - JOUR
T1 - Experimental studies of instabilities and confinement of energetic particles on JET and MAST
JF - Nuclear Fusion
Y1 - 2005
A1 - Sharapov, S. E.
A1 - Alper, B.
A1 - Andersson, F.
A1 - Baranov, Y. F.
A1 - Berk, H. L.
A1 - Bertalot, L.
A1 - Borba, D.
A1 - Boswell, C.
A1 - Breizman, B. N.
A1 - Buttery, R.
A1 - Challis, C. D.
A1 - de M. Baar
A1 - P. de Vries
A1 - Eriksson, L. G.
A1 - Fasoli, A.
A1 - Galvao, R.
A1 - Goloborod'ko, V.
A1 - Gryaznevich, M. P.
A1 - Hastie, R. J.
A1 - Hawkes, N. C.
A1 - Helander, P.
A1 - Kiptily, V. G.
A1 - Kramer, G. J.
A1 - Lomas, P. J.
A1 - J. Mailloux
A1 - Mantsinen, M. J.
A1 - Martin, R.
A1 - Nabais, F.
A1 - Nave, M. F.
A1 - Nazikian, R.
A1 - Noterdaeme, J. M.
A1 - Pekker, M. S.
A1 - Pinches, S. D.
A1 - Pinfold, T.
A1 - Popovichev, S. V.
A1 - Sandquist, P.
A1 - Stork, D.
A1 - Testa, D.
A1 - Tuccillo, A.
A1 - Voitsekhovich, I.
A1 - Yavorskij, V.
A1 - Young, N. P.
A1 - Zonca, F.
VL - 45
SN - 0029-5515
UR - ://000232350100017
U1 - Fusion Physics
U2 - Tokamak physics
U5 - f4be06468fbd619f34ca113c6fabcc55
ER -
TY - JOUR
T1 - Confinement properties of high density impurity seeded ELMy H-mode discharges at low and high triangularity on JET
JF - Plasma Physics and Controlled Fusion
Y1 - 2002
A1 - Dumortier, P.
A1 - Andrew, P.
A1 - Bonheure, G.
A1 - Budny, R. V.
A1 - Buttery, R.
A1 - Charlet, M.
A1 - Coffey, I.
A1 - de M. Baar
A1 - de Vries, P. C.
A1 - Eich, T.
A1 - Hillis, D.
A1 - Ingesson, C.
A1 - Jachmich, S.
A1 - Jackson, G.
A1 - Kallenbach, A.
A1 - Koslowski, H. R.
A1 - Lawson, K. D.
A1 - Liu, C.
A1 - Maddison, G.
A1 - Messiaen, A. M.
A1 - Monier-Garbet, P.
A1 - Murakami, M.
A1 - M F F Nave
A1 - Ongena, J.
A1 - Parail, V.
A1 - M. E. Puiatti
A1 - Rapp, J.
A1 - Sartori, F.
A1 - Stamp, M.
A1 - Strachan, J. D.
A1 - Suttrop, W.
A1 - Telesca, G.
A1 - Tokar, M.
A1 - Unterberg, B.
A1 - Valisa, M.
A1 - von Hellermann, M.
A1 - Weyssow, B.
VL - 44
SN - 0741-3335
UR - ://000178415900005
U1 - Fusion Physics
U2 - Instrumentation development
U5 - 68c870a1f9f186cafff6c169e8f363c9
ER -
TY - JOUR
T1 - Confinement and exhaust in the Mega Ampere Spherical Tokamak
JF - Plasma Physics and Controlled Fusion
Y1 - 2002
A1 - Counsell, G. F.
A1 - Ahn, J. W.
A1 - Akers, R.
A1 - Arends, E.
A1 - Buttery, R.
A1 - Field, A. R.
A1 - Gryaznevich, M.
A1 - Helander, P.
A1 - Kirk, A.
A1 - Meyer, H.
A1 - Valovic, M.
A1 - Wilson, H. R.
A1 - Yang, Y.
VL - 44
SN - 0741-3335
UR - ://000180907400006
N1 - Suppl. 12B
U1 - Fusion Physics
U2 - Instrumentation development
U5 - 392e8e7768b860f9ae5e5c5f49202978
ER -