Role of fast ion pressure in the isotope effect in JET L-mode plasmas

被引：26

作者：

Bonanomi, N. ^{[1
,9
,69
,105
]}

Casiraghi, I ^{[2
,3
]}

Mantica, P. ^{[3
,9
,51
]}

Challis, C. ^{[4
]}

Delabie, E. ^{[5
,9
,78
]}

Fable, E. ^{[1
,9
,69
]}

Gallart, D. ^{[6
,9
,14
]}

Giroud, C. ^{[4
,9
,15
]}

Lerche, E. ^{[7
,9
,66
]}

Lomas, P. ^{[4
]}

Menmuir, S. ^{[4
,9
,15
]}

Staebler, G. M. ^{[8
]}

Taylor, D. ^{[4
,9
,15
]}

Van Eester, D. ^{[7
,9
,66
]}

Abduallev, S. ^{[9
,43
]}

Abhangi, M. ^{[9
,55
]}

Abreu, P. ^{[9
,61
]}

Afanasev, V ^{[9
,62
]}

Afzal, M. ^{[9
,15
]}

Aggarwal, K. M. ^{[9
,86
]}

Ahlgren, T. ^{[9
,107
]}

Aho-Mantila, L. ^{[9
,114
]}

Aiba, N. ^{[9
,74
]}

Airila, M. ^{[9
,114
]}

Alarcon, T. ^{[9
,16
]}

Albanese, R. ^{[9
,19
]}

Alegre, D. ^{[9
,65
]}

Aleiferis, S. ^{[9
,76
]}

Alessi, E. ^{[9
,51
]}

Aleynikov, P. ^{[9
,63
]}

Alkseev, A. ^{[9
,77
]}

Allinson, M. ^{[9
,15
]}

Alper, B. ^{[9
,15
]}

Alves, E. ^{[9
,61
]}

Ambrosino, G. ^{[9
,19
]}

Ambrosino, R. ^{[9
,19
]}

Amosov, V ^{[9
,96
]}

Sunden, E. Andersson ^{[9
,27
]}

Andrews, R. ^{[9
,15
]}

Angelone, M. ^{[9
,97
]}

Anghel, M. ^{[9
,93
]}

Angioni, C. ^{[9
,69
]}

Appel, L. ^{[9
,15
]}

Appelbee, C. ^{[9
,15
]}

Arena, P. ^{[9
,35
]}

Ariola, M. ^{[9
,19
]}

Arshad, S. ^{[9
,46
]}

Artaud, J. ^{[9
,16
]}

Arter, W. ^{[9
,15
]}

Ash, A. ^{[9
,15
]}

机构：

[1] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany

[2] Univ Milano Bicocca, Milan, Italy

[3] CNR Plasma Phys Inst P Caldirola, Milan, Italy

[4] Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England

[5] Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA

[6] Barcelona Supercomp Ctr, Barcelona, Spain

[7] LPP ERM KMS, TEC Partner, Brussels, Belgium

[8] Gen Atom, POB 85608, San Diego, CA 92186 USA

[9] EUROfus Consortium JET, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

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

[11] Aix Marseille Univ, CNRS, M2P2, UMR 7340, F-13013 Marseille, France

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

[13] Arizona State Univ, Tempe, AZ USA

[14] Barcelona Supercomp Ctr, Barcelona, Spain

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

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

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

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

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

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

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

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

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

[24] Univ Cagliari, Dept Elect & Elect Engn, Piazza Armi, I-09123 Cagliari, Italy

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

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

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

[28] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 ONG, Lanark, Scotland

[29] Chalmers Univ Technol, Dept Phys, SE-41296 Gothenburg, Sweden

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

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

[32] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

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

[34] Chalmers Univ Technol, Dept Space Earth & Environm, SE-41296 Gothenburg, Sweden

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

[36] Dublin City Univ, Dublin, Ireland

[37] Ecole Polytech Fed Lausanne, Swiss Plasma Ctr, CH-1015 Lausanne, Switzerland

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

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

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

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

[42] FOM Inst DIFFER, Eindhoven, Netherlands

[43] Forschungszentrum Julich, Inst Energie & Klimaforsch, Plasmaphys, D-52425 Julich, Germany

[44] Fdn Res & Technol, N Plastira 100, Iraklion 70013, Crete, Greece

[45] Fourth State Res, 503 Lockhart Dr, Austin, TX USA

[46] Fus Energy Joint Undertaking, Josep Pl 2,Torres Diagonal Litoral B3, Barcelona 08019, Spain

[47] KTH, EES, Fus Plasma Phys, SE-10044 Stockholm, Sweden

[48] Gen Atom, POB 85608, San Diego, CA 92186 USA

[49] HRS Fus, W Orange, NJ USA

[50] ICREA, Barcelona, Spain

来源：

NUCLEAR FUSION | 2019年 / 59卷 / 09期

关键词：

turbulent transport; fast ions; isotope effect; JET tokamak; gyrokinetic simulations; DRIFT ORBIT WIDTH; CONFINEMENT; SIMULATIONS; TURBULENCE; TRANSPORT; EQUATIONS;

D O I：

10.1088/1741-4326/ab2d4f

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 presents results of JET ITER-like wall L-mode experiments in hydrogen and deuterium (D) plasmas, dedicated to the study of the isotope dependence of ion heat transport by determination of the ion critical gradient and stiffness by varying the ion cyclotron resonance heating power deposition. When no strong role of fast ions in the plasma core is expected, the main difference between the two isotope plasmas is determined by the plasma edge and the core behavior is consistent with a gyro-Bohm scaling. When the heating power (and the fast ion pressure) is increased, in addition to the difference in the edge region, also the plasma core shows substantial changes. The stabilization of ion heat transport by fast ions, clearly visible in D plasmas, appears to be weaker in H plasmas, resulting in a higher ion heat flux in H with apparent anti-gyro-Bohm mass scaling. The difference is found to be caused by the different fast ion pressure between H and D plasmas, related to the heating power settings and to the different fast ion slowing down time, and is completely accounted for in non-linear gyrokinetic simulations. The application of the TGLF quasi-linear model to this set of data is also discussed.

引用

页数：10

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