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
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