Impact of divertor geometry on H-mode confinement in the JET metallic wall

被引：26

作者：

Joffrin, E. ^{[1
,21
]}

Tamain, P. ^{[1
,21
]}

Belonohy, E. ^{[2
,75
]}

Bufferand, H. ^{[1
,21
]}

Buratti, P. ^{[3
,14
]}

Challis, C. D. ^{[4
,20
]}

Delabie, E. ^{[5
,86
]}

Drewelow, P. ^{[6
,76
]}

Dodt, D. ^{[6
]}

Frassinetti, L. ^{[7
,55
]}

Garcia, J. ^{[1
,21
]}

Giroud, C. ^{[4
,20
]}

Groth, M. ^{[8
,14
]}

Hobirk, J. ^{[6
,75
]}

Jarvinen, A. E. ^{[8
]}

Kim, H. -T. ^{[4
]}

Koechl, F. ^{[9
,123
]}

Kruezi, U. ^{[4
,20
]}

Lipschutz, B. ^{[10
]}

Lomas, P. J. ^{[4
,20
]}

de la Luna, E. ^{[11
,70
]}

Loarer, T. ^{[1
,21
]}

Maget, P. ^{[1
,21
]}

Maggi, C. ^{[4
,20
]}

Matthews, G. ^{[4
]}

Maviglia, F. ^{[3
,24
]}

Meigs, A. ^{[4
]}

Nunes, I. ^{[12
,66
]}

Pucella, G. ^{[3
,103
]}

Rimini, F. ^{[4
]}

Saarelma, S. ^{[4
,20
]}

Solano, E. ^{[11
]}

Sips, A. C. C. ^{[2
,49
]}

Tsalas, M. ^{[13
,51
]}

Voitsekhovitch, I. ^{[4
,47
]}

Weisen, H. ^{[2
,46
]}

Abduallev, S. ^{[52
]}

Abhangi, M. ^{[59
]}

Abreu, P. ^{[66
]}

Afzal, M. ^{[20
]}

Aggarwal, K. M. ^{[42
]}

Ahlgren, T. ^{[114
]}

Ahn, J. H. ^{[21
]}

Aho-Mantila, L. ^{[124
]}

Aiba, N. ^{[82
]}

Airila, M. ^{[124
]}

Albanese, R. ^{[117
]}

Aldred, V. ^{[20
]}

Alegre, D. ^{[106
]}

Alessi, E. ^{[58
]}

机构：

[1] CEA, IRFM, F-13108 St Paul Les Durance, France

[2] JET Exploitat Unit, Culham Sci Site, Abingdon OX14 3DB, Oxon, England

[3] CR Frascati, Unita Tecn Fus ENEA, Rome, Italy

[4] Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England

[5] ERM, Ecole Royale Mil Ave Renaissance 30, B-1000 Brussels, Belgium

[6] Max Planck Inst Plasma Phys, D-85748 Garching, Germany

[7] Royal Inst Technol KTH, SE-10044 Stockholm, Sweden

[8] VTT, Tekes, POB 1000, Espoo 02044, Finland

[9] TU Wien, Atominst, OAW ATI, A-1020 Vienna, Austria

[10] Univ York, Dept Phys, York Plasma Inst, York YO10 5DD, N Yorkshire, England

[11] CIEMAT, Lab Nacl Fus, E-28040 Madrid, Spain

[12] Lab Plasmas & Fusao Nucl, P-1000 Lisbon, Portugal

[13] DIFFER, NL-5612 AJ Eindhoven, Netherlands

[14] Aalto Univ, POB 14100, FIN-00076 Aalto, Finland

[15] Aix Marseille Univ, CNRS, Ctr Marseille, M2P2 UMR 7340, F-13451 Marseille, France

[16] Aix Marseille Univ, CNRS, IUSTI UMR 7343, F-13013 Marseille, France

[17] Aix Marseille Univ, CNRS, PIIM, UMR 7345, F-13013 Marseille, France

[18] Arizona State Univ, Tempe, AZ USA

[19] Barcelona Supercomp Ctr, Barcelona, Spain

[20] CCFE Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[21] CEA, IRFM, F-13108 St Paul Les Durance, France

[22] Univ Calif San Diego, Ctr Energy Res, La Jolla, CA 92093 USA

[23] Ctr Brasileiro Pesquisas Fis, Rua Xavier Sigaud 160, BR-22290180 Rio De Janeiro, Brazil

[24] Consorzio CREATE, Via Claudio 21, I-80125 Naples, Italy

[25] Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy

[26] Daegu Univ, Gyongsan 712174, Gyeongbuk, South Korea

[27] Univ Carlos III Madrid, Dept Fis, Madrid 28911, Spain

[28] Univ Ghent, Dept Appl Phys UG, St Pietersnieuwstr 41, B-9000 Ghent, Belgium

[29] Chalmers Univ Technol, Dept Earth & Space Sci, SE-41296 Gothenburg, Sweden

[30] Univ Cagliari, Dept Elect & Elect Engn, Piazza Armi 09123, Cagliari, Italy

[31] Comenius Univ, Dept Expt Phys, Fac Math Phys & Informat, Mlynska Dolina F2, Bratislava 84248, Slovakia

[32] Warsaw Univ Technol, Dept Mat Sci, PL-01152 Warsaw, Poland

[33] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Daejeon 34141, South Korea

[34] Univ Strathclyde, Dept Phys & Appl Phys, Glasgow G4 ONG, Lanark, Scotland

[35] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

[36] Chalmers Univ Technol, Dept Phys, S-41296 Gothenburg, Sweden

[37] Imperial Coll London, Dept Phys, London SW7 2AZ, England

[38] KTH, SCI, Dept Phys, SE-10691 Stockholm, Sweden

[39] Univ Basel, Dept Phys, Basel, Switzerland

[40] Univ Oxford, Dept Phys, Oxford OX1 2JD, England

[41] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[42] Queens Univ, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland

[43] Univ Catania, Dipartimento Ingn Elettr Elettron & Informat, I-95125 Catania, Italy

[44] Univ Trento, Dipartimento Ingn Ind, Trento, Italy

[45] Dublin City Univ, Dublin, Ireland

[46] Swiss Plasma Ctr, EPFL, CH-1015 Lausanne, Switzerland

[47] EUROfus Programme Management Unit, Boltzmannstr 2, D-85748 Garching, Germany

[48] Culham Sci Ctr, EUROfus Programme Management Unit, Culham OX14 3DB, England

[49] European Commiss, B-1049 Brussels, Belgium

[50] ULB, Fluid & Plasma Dynam, Campus Plaine CP 231 Blvd Triomphe, B-1050 Brussels, Belgium

来源：

NUCLEAR FUSION | 2017年 / 57卷 / 08期

关键词：

divertor; confinement; neutrals; INJECTION; PARTICLE;

D O I：

10.1088/1741-4326/aa6e1c

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：

Recent experiments with the ITER-like wall have demonstrated that changes in divertor strike point position are correlated with strong modification of the global energy confinement. The impact on energy confinement is observable both on the pedestal confinement and core normalised gradients. The corner configuration shows an increased core density gradient length and ion pressure indicating a better ion confinement. The study of neutral re-circulation indicates the neutral pressure in the main chamber varies inversely with the energy confinement and a correlation between the pedestal total pressure and the neutral pressure in the main chamber can be established. It does not appear that charge exchange losses nor momentum losses could explain this effect, but it may be that changes in edge electric potential are playing a role at the plasma edge. This study emphasizes the importance of the scrape-off layer (SOL) conditions on the pedestal and core confinement.

引用

页数：10

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