Magnetic field dependence of the blob dynamics in the edge of ASDEX upgrade L-mode plasmas

G Birkenmeier; F M Laggner; M Willensdorfer; T Kobayashi; P Manz; E Wolfrum; D Carralero; R Fischer; B Sieglin; G Fuchert; U Stroth; the ASDEX upgrade team

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Magnetic field dependence of the blob dynamics in the edge of ASDEX upgrade L-mode plasmas

机译：ASDEX升级L型等离子体边缘的斑点动力学的磁场依赖性

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The magnetic field dependence of intermittently expelled density filaments (blobs) is investigated in the scrape-off layer of ASDEX Upgrade low confinement (L-mode) plasmas. It is demonstrated that lithium beam emission spectroscopy can be used to determine the frequency, radial size and velocity of the blobs. The measured radial blob sizes depend only weakly on magnetic field B. Normalizing the blob sizes to the drift parameter ρ_s ∝ B-1 results in a large variation beneficial for a quantitative comparison with theoretical blob scaling laws. The blob velocity scales inversely proportional to the square of the blob size in agreement with analytic models for blobs in the sheath-connected regime. The measurements point towards an influence of finite ion temperature on radial blob transport.

机译：在ASDEX升级低限制（L型）等离子体的刮除层中研究了间歇排出的密度细丝（blob）的磁场依赖性。事实证明，锂束发射光谱法可用于确定斑点的频率，径向尺寸和速度。测得的径向斑点大小仅弱依赖于磁场B。将斑点大小归一化为漂移参数ρ_s∝ B-1会导致较大的变化，有利于与理论斑点缩放定律进行定量比较。斑点速度与斑点大小的平方成反比，与鞘管连接方式中斑点的分析模型一致。测量指向有限的离子温度对径向斑点传输的影响。

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《Plasma physics and controlled fusion》 |2014年第7期|共11页
作者
G Birkenmeier; F M Laggner; M Willensdorfer; T Kobayashi; P Manz; E Wolfrum; D Carralero; R Fischer; B Sieglin; G Fuchert; U Stroth; the ASDEX upgrade team;
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正文语种 eng
中图分类等离子体物理学;
关键词
plasma physics; magnetic confinement; turbulent transport;

机译：等离子体物理学;磁约束;湍流输运;

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专利

1. Magnetic field dependence of the blob dynamics in the edge of ASDEX upgrade L-mode plasmas [J] . G Birkenmeier, F M Laggner, M Willensdorfer, Plasma physics and controlled fusion . 2014,第7期

机译：ASDEX升级L型等离子体边缘的斑点动力学的磁场依赖性
2. Effect of the isotope mass on the turbulent transport at the edge of L-mode plasmas in ASDEX Upgrade and JET-ILW [J] . Bonanomi N., Angioni C., Crandall P. C., Nuclear fusion . 2019,第12期

机译：在ASDEX升级版和JET-ILW中，同位素质量对L型等离子体边缘湍流传输的影响
3. SOLPS 5.0 simulations of the high-field side divertor detachment of L-mode plasmas in ASDEX upgrade with convection-dominated radial SOL transport [J] . J. Karhunen, M. Groth, D.P. Coster, Nuclear Materials and Energy . 2019,第3期

机译：对流主导的径向SOL传输的ASDEX升级中L模式等离子体的高场侧偏滤器分离的SOLPS 5.0模拟
4. EMC3-Eirene simulations of the spatial dependence of the tungsten divertor retention in the magnetically per turbed ASDEX Upgrade edge plasma [C] . T. Lunt, Y. Feng, A. Janzer, Conference on Plasma Physics . 2011

机译：EMC3-烯烃模拟磁性涡轮型Asdex升级边缘等离子体磁性钨方位器保持的空间依赖性
5. Dynamics of low-density ultracold plasmas in externally applied electric and magnetic fields. [D] . Wilson, Truman M. 2013

机译：低密度超冷等离子体在外部施加的电场和磁场中的动力学。
6. Multi-frame acquisition scheme for efficient energy-dispersive X-ray magnetic circular dichroism in pulsed high magnetic fields at the Fe K-edge [O] . Cornelius Strohm, Florian Perrin, Marie-Christine Dominguez, -1

机译：Fe K边缘的脉冲强磁场中高效能量色散X射线磁性圆二色性的多帧采集方案
7. L-mode radiative plasma edge studies for model validation in ASDEX Upgrade and JET [O] . Aho-Mantila, L., Bernert, M., Stamp, M. F., 2013

机译：在ASDEX升级和JET中用于模型验证的L模式辐射等离子体边缘研究
8. Divertor Plasma Conditions and Their Effect on Carbon Migration in the ASDEX Upgrade Tokamak (Diverttorin Plasmaolosuhteet ja Niiden Vaikutus Hiilen Kulkeutumiseen ASDEX Upgrade -Tokamakissa) [R] . Aho-Mantila, L. 2011

机译：asDEX升级托卡马克的Divertor等离子体条件及其对碳迁移的影响（Diverttorin plasmaolosuhteet ja Niiden Vaikutus Hiilen Kulkeutumiseen asDEX升级-Tokamakissa）

Magnetic field dependence of the blob dynamics in the edge of ASDEX upgrade L-mode plasmas

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