Progress at JET in integrating ITER-relevant core and edge plasmas within the constraints of an ITER-like wall

被引:76
作者
Giroud, C. [1 ]
Jachmich, S. [2 ]
Jacquet, P. [1 ]
Jarvinen, A. [3 ]
Lerche, E. [2 ]
Rimini, F. [1 ]
Aho-Mantila, L. [4 ]
Aiba, N. [5 ]
Balboa, I. [1 ]
Belo, P. [1 ]
Angioni, C. [6 ]
Beurskens, M. [1 ]
Brezinsek, S. [7 ]
Casson, F. J. [1 ]
Coffey, I. [8 ]
Cunningham, G. [1 ]
Delabie, E. [9 ]
Devaux, S. [1 ]
Drewelow, P. [10 ]
Frassinetti, L. [11 ]
Figueiredo, A. [12 ]
Huber, A. [7 ]
Hillesheim, J. [1 ]
Garzotti, L. [1 ]
Goniche, M. [13 ]
Groth, M. [3 ]
Kim, Hyun-Tae [1 ]
Leyland, M. [14 ]
Lomas, P. [1 ]
Maddison, G. [1 ]
Marsen, S. [10 ]
Matthews, G. [1 ]
Meigs, A. [1 ]
Menmuir, S.
Puetterich, T. [6 ]
van Rooij, G. [9 ]
Saarelma, S. [1 ]
Stamp, M. [1 ]
Urano, H. [5 ]
Webster, A. [1 ]
机构
[1] CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[2] ERM KMS, Brussels, Belgium
[3] Aalto Univ, Assoc EURATOM Tekes, Espoo 02150, Finland
[4] VTT Tech Res Ctr Finland, FI-02044 Espoo, Finland
[5] Japan Atom Energy Agcy, Naka Fus Inst, Naka, Ibaraki 3110193, Japan
[6] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany
[7] Forschungszentrum Julich, Assoc EURATOM FZJ, EK Plasmaphys, D-52425 Julich, Germany
[8] Queens Univ, Astrophys Res Ctr, Belfast BT7 1NN, Antrim, North Ireland
[9] FOM DIFFER, NL-3430 BE Nieuwegein, Netherlands
[10] Max Planck Inst Plasma Phys, Teilinst Greifswald, D-17491 Greifswald, Germany
[11] KTH, SCI, Dept Phys, VR, SE-10691 Stockholm, Sweden
[12] Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, P-1049001 Lisbon, Portugal
[13] CEA, IRFM, F-13108 St Paul Les Durance, France
[14] Univ York, Dept Phys, York Plasma Inst, York YO10 5DD, N Yorkshire, England
[15] JET EFDA, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
基金
英国工程与自然科学研究理事会;
关键词
tokamak; high triangularity; seeding; power load; pedestal; confinement; ELMY H-MODE; CONFINEMENT; DENSITY; TRIANGULARITY; OPTIMIZATION; OPERATION;
D O I
10.1088/0741-3335/57/3/035004
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
This paper reports the progress made at JET-ILW on integrating the requirements of the reference ITER baseline scenario with normalized confinement factor of 1, at a normalized pressure of 1.8 together with partially detached divertor whilst maintaining these conditions over many energy confinement times. The 2.5 MA high triangularity ELMy H-modes are studied with two different divertor configurations with D-gas injection and nitrogen seeding. The power load reduction with N seeding is reported. The relationship between an increase in energy confinement and pedestal pressure with triangularity is investigated. The operational space of both plasma configurations is studied together with the ELM energy losses and stability of the pedestal of unseeded and seeded plasmas. The achievement of stationary plasma conditions over many energy confinement times is also reported.
引用
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页数:20
相关论文
共 55 条
[41]   MHD stability analysis of small ELM regimes in JET [J].
Saarelma, S. ;
Alfier, A. ;
Beurskens, M. N. A. ;
Coelho, R. ;
Koslowski, H. R. ;
Liang, Y. ;
Nunes, I. .
PLASMA PHYSICS AND CONTROLLED FUSION, 2009, 51 (03)
[42]  
Saarelma S, 2013, 14 H MOD WORKSH KYUS
[43]   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
[44]   Study of type III ELMs in JET [J].
Sartori, R ;
Saibene, G ;
Horton, LD ;
Becoulet, M ;
Budny, R ;
Borba, D ;
Chankin, A ;
Conway, GD ;
Cordey, G ;
McDonald, D ;
Guenther, K ;
von Hellermann, MG ;
Igithkanov, Y ;
Loarte, A ;
Lomas, PJ ;
Pogutse, O ;
Rapp, J .
PLASMA PHYSICS AND CONTROLLED FUSION, 2004, 46 (05) :723-750
[45]   Neoclassical conductivity and bootstrap current formulas for general axisymmetric equilibria and arbitrary collisionality regime [J].
Sauter, O ;
Angioni, C ;
Lin-Liu, YR .
PHYSICS OF PLASMAS, 1999, 6 (07) :2834-2839
[46]  
Scarabosio A, 2014, J NUCL MAT UNPUB
[47]   Power load studies in JET and ASDEX-Upgrade with full-W divertors [J].
Sieglin, B. ;
Eich, T. ;
Scarabosio, A. ;
Arnoux, G. ;
Balboa, I. ;
Devaux, S. ;
Herrmann, A. ;
Hoppe, F. ;
Hoelzl, M. ;
Kallenbach, A. ;
Lang, P. ;
Matthews, G. F. ;
Marsen, S. ;
Pamela, S. ;
Rack, M. ;
Wenninger, R. .
PLASMA PHYSICS AND CONTROLLED FUSION, 2013, 55 (12)
[48]   A first-principles predictive model of the pedestal height and width: development, testing and ITER optimization with the EPED model [J].
Snyder, P. B. ;
Groebner, R. J. ;
Hughes, J. W. ;
Osborne, T. H. ;
Beurskens, M. ;
Leonard, A. W. ;
Wilson, H. R. ;
Xu, X. Q. .
NUCLEAR FUSION, 2011, 51 (10)
[49]   Edge localized modes and the pedestal: A model based on coupled peeling-ballooning modes [J].
Snyder, PB ;
Wilson, HR ;
Ferron, JR ;
Lao, LL ;
Leonard, AW ;
Osborne, TH ;
Turnbull, AD ;
Mossessian, D ;
Murakami, M ;
Xu, XQ .
PHYSICS OF PLASMAS, 2002, 9 (05) :2037-2043
[50]   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