Long timescale density peaking in JET

被引:48
作者
Valovic, M [1 ]
Rapp, J
Cordey, JG
Budny, R
McDonald, DC
Garzotti, L
Kallenbach, A
Mahdavi, MA
Ongena, J
Parail, V
Saibene, G
Sartori, R
Stamp, M
Sauter, O
Strachan, J
Suttrop, W
机构
[1] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] Forschungszentrum Julich GMBH, EURATOM Assoc, Inst Plasmaphys, D-52425 Julich, Germany
[3] Princeton Univ, PPPL, Princeton, NJ 08544 USA
[4] EURATOM, Consorzio RFX, Enea Fus, I-35127 Padua, Italy
[5] EURATOM, IPP, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
[6] Gen Atom Co, San Diego, CA 92138 USA
[7] Asso Euratom Belgian State, LPP ERM KMS, Brussels, Belgium
[8] EFDA CSU, Garching, Germany
[9] Assoc EURATOM Switzerland, EPFL, CRPP Lausanne Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1088/0741-3335/44/9/309
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Long timescale density peaking has been observed in JET plasmas leading to densities exceeding the Greenwald value. These neutral beam heated discharges are characterized by type-I ELMS and good energy confinement. Central density is limited by neoclassical tearing modes or by termination of H-mode preceded by loss of sawteeth. When these limiting factors are avoided (i.e. at intermediate power level and With optimization of gas puffing) quasi-stationary high density plasmas with peaked density profile are obtained.
引用
收藏
页码:1911 / 1917
页数:7
相关论文
共 11 条
[1]   Energy confinement in steady-state ELMy H-modes in JET [J].
Cordey, JG ;
McDonald, DC ;
Borrass, K ;
Charlet, M ;
Coffey, I ;
Kallenbach, A ;
Lawson, K ;
Lomas, P ;
Ongena, J ;
Rapp, J ;
Ryter, F ;
Saibene, G ;
Sartori, R ;
Stamp, M ;
Strachan, J ;
Suttrop, W ;
Valovic, M .
PLASMA PHYSICS AND CONTROLLED FUSION, 2002, 44 (09) :1929-1935
[2]  
MAHDAVI MA, 2000, 18 IAEA C SORR 2000
[3]   Gas puff fueled H-mode discharges with good energy confinement above the Greenwald density limit on DIII-D [J].
Osborne, TH ;
Mahdavi, MA ;
Chu, M ;
Fenstermacher, ME ;
La Haye, R ;
Leonard, AW ;
McKee, G ;
Petrie, TW ;
Rettig, C ;
Wade, M ;
Watkins, J .
JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :1013-1017
[4]  
Parada MA, 2001, REV GEOL CHILE, V28, P25
[5]   The influence of isotope mass, edge magnetic shear and input power on high density ELMy H modes in JET [J].
Saibene, G ;
Horton, LD ;
Sartori, R ;
Balet, B ;
Clement, S ;
Conway, GD ;
Cordey, JG ;
De Esch, HPL ;
Ingesson, LC ;
Lingertat, J ;
Monk, RD ;
Parail, VV ;
Smith, RJ ;
Taroni, A ;
Thomsen, K ;
von Hellermann, MG .
NUCLEAR FUSION, 1999, 39 (09) :1133-1156
[6]   Improved performance of ELMy H-modes at high density by plasma shaping in JET [J].
Saibene, G ;
Sartori, R ;
Loarte, A ;
Campbell, DJ ;
Lomas, PJ ;
Parail, V ;
Zastrow, KD ;
Andrew, Y ;
Sharapov, S ;
Korotkov, A ;
Becoulet, M ;
Huysmans, GTA ;
Koslowski, HR ;
Budny, R ;
Conway, GD ;
Stober, J ;
Suttrop, W ;
Kallenbach, A ;
von Hellermann, M ;
Beurskens, M .
PLASMA PHYSICS AND CONTROLLED FUSION, 2002, 44 (09) :1769-1799
[7]   Edge operational space for high density/high confinement ELMY H-modes in JET [J].
Sartori, R ;
Saibene, G ;
Becoulet, M ;
Lomas, PJ ;
Loarte, A ;
Campbell, DJ ;
Andrew, Y ;
Budny, R ;
Beurskens, MNA ;
Kallenbach, A ;
Parail, V ;
Suttrop, W ;
Stober, J ;
Zastrow, KD ;
Zerbini, M ;
Monk, RD .
PLASMA PHYSICS AND CONTROLLED FUSION, 2002, 44 (09) :1801-1813
[8]   Control of neoclassical tearing modes by sawtooth control [J].
Sauter, O ;
Westerhof, E ;
Mayoral, ML ;
Alper, B ;
Belo, PA ;
Buttery, RJ ;
Gondhalekar, A ;
Hellsten, T ;
Hender, TC ;
Howell, DF ;
Johnson, T ;
Lamalle, P ;
Mantsinen, MJ ;
Milani, F ;
Nave, MFF ;
Nguyen, F ;
Pecquet, AL ;
Pinches, SD ;
Podda, S ;
Rapp, J .
PHYSICAL REVIEW LETTERS, 2002, 88 (10) :4-105001
[9]   Optimization of confinement, stability and power exhaust of the ELMy H-mode in ASDEX Upgrade [J].
Stober, J ;
Zohm, H ;
Gruber, O ;
Herrmann, A ;
Kaufmann, M ;
Maraschek, M ;
Meo, F ;
Sips, A ;
Treutterer, W .
PLASMA PHYSICS AND CONTROLLED FUSION, 2001, 43 :A39-A53
[10]   Dependence of the density shape on the heat flux profile in ASDEX Upgrade high density H modes [J].
Stober, J ;
Fuchs, C ;
Gruber, O ;
Kaufmann, M ;
Kurzan, B ;
Meo, F ;
Müller, HW ;
Ryter, F .
NUCLEAR FUSION, 2001, 41 (11) :1535-1538