Isotope mass dependence of pedestal transport in JET H-mode plasmas

被引：7
|
作者：
Predebon, I. [1 ,2 ]
Hatch, D. R. [3 ]
Frassinetti, L. [4 ]
Horvath, L. [5 ]
Saarelma, S. [5 ]
Chapman-Oplopoiou, B. [5 ]
Goerler, T. [6 ]
Maggi, C. F. [5 ]
机构：
[1] Univ Padua, Consorzio RFX, CNR, ENEA,INFN,Acciaierie Venete SpA, Padua, Italy
[2] CNR, Ist Sci & Tecnol Plasmi, I-35127 Padua, Italy
[3] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA
[4] KTH Royal Inst Technol, Div Fus Plasma Phys, SE-10691 Stockholm, Sweden
[5] Culham Sci Ctr, CCFE, Abingdon OX14 3DB, England
[6] Max Planck Inst Plasma Phys, D-85748 Garching, Germany
来源：
NUCLEAR FUSION | 2023年 / 63卷 / 03期
关键词：
pedestal; isotope effect; transport; gyrokinetics; JET-ILW; TURBULENCE; SHEAR;
D O I：
10.1088/1741-4326/acb44f
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：
We present a comparative transport analysis of the isotope mass dependence in the pedestal of two pairs of deuterium/hydrogen type I ELMy H-mode discharges in JET with ITER-like wall, one characterized by the same input power, the other one by the same stored energy. The investigation, carried out using the gyrokinetic code GENE, focuses on the steep profile region of the pedestal. While large wavenumber modes mainly contribute to the electron heat flux and are scarcely influenced by the main gas isotope, an effect of the ion mass in agreement with the experimental (so called anti-gyro-Bohm) scaling is revealed in the low wavenumber range. In this context, the major role played by the ExB
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页数：12
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