Investigation of the edge ion-to-electron temperature ratio in the J-TEXT tokamak
Investigation of the edge ion-to-electron temperature ratio in the J-TEXT tokamak
复制标题
J-TEXT 托卡马克中边缘离子与电子温度比的研究
DOI：
10.1088/1361-6587/abf85d
复制
发表时间：
2021-04
影响因子：
2.2
通讯作者：
Changjian Tang
中科院分区：
文献类型：
--
作者：
Hai Liu;Kangzhong Xu;Yuhong Xu;Zhipeng Chen;Jun Cheng;Haifeng Liu;Xianqu Wang;Jie Huang;Xin Zhang;Junren Shao;Chijin Xiao;Changjian Tang
使用延迟的tokamak测量了在密度扫描放电过程中，在密度扫描放电的最后一个闭合通量表面（LCF）和刮擦层（SOL）中的离子（T i）和电子（T e）温度已在J-Text Tokamak中测量
The ion (T i) and electron (T e) temperatures at the last closed flux surface (LCFS) during density scanning discharges and in the scrape-off layer (SOL) with a constant plasma density have been measured in the J-TEXT tokamak using a retarding field analyzer and four-tip Langmuir probe, respectively. Both the LCFS T i and T e are found to reduce with increasing central line-averaged density ( nˉe ). The temperature ratio (τ = T i/T e) is about 2 for a low n¯e (1.5 → 2.5 × 1019 m−3), decays in a moderate nˉe (2.5 → 3.5 × 1019 m−3) and tends to unity at a high nˉe (3.5 → 4.2 × 1019 m−3). This suggests that the ions and electrons at the LCFS (even in the SOL) are thermally decoupled at low or moderate nˉe and tend to full thermal coupling in the high-density plasmas. In addition, both T i and T e decrease with the radius and T e falls more steeply than T i due to faster parallel energy loss of electrons in the SOL. In contrast, τ rises with the radius, which indicates that the ions and electrons are much more thermally decoupled in the deeper SOL.
登录
查看更多内容
HL-2A托卡马克Langmuir探针鞘层电势系数的实验评估
影响因子：
3.3
作者：
Nie L.;Xu M.;Ke R.;Yuan B. D.;Wu Y. F.;Cheng J.;Guo D.;Ting L.;Dong Y. B.;Zhang Y. P.;Song X. M.;Zhong W. L.;Wang Z. H.;Sun A. P.;Xu J. Q.;Chen W.;Yan L. W.;Duan X. R.;HL-2A Team;Ke R.;Yuan B. D.;Wu Y. F.;Yu Y.;Lan T.;Lan T.;Hong R. J.;Zou X. L.;Nie L
通讯作者：
Nie L
影响因子：
2.2
作者：
M. Kocan;A. Herrmann;H. W. Müller;V. Rohde;T. Eich;M. Bernert;S. Carpentier-Chouchana;J. Gunn;A. Kirk;M. Komm;R. Pitts
通讯作者：
M. Kocan;A. Herrmann;H. W. Müller;V. Rohde;T. Eich;M. Bernert;S. Carpentier-Chouchana;J. Gunn;A. Kirk;M. Komm;R. Pitts
影响因子：
3.1
作者：
M. Kocan;J. Gunn;S. Carpentier-Chouchana;A. Herrmann;A. Kirk;M. Komm;H. W. Müller;J. Pascal;R. Pitts;V. Rohde;P. Tamain
通讯作者：
M. Kocan;J. Gunn;S. Carpentier-Chouchana;A. Herrmann;A. Kirk;M. Komm;H. W. Müller;J. Pascal;R. Pitts;V. Rohde;P. Tamain
影响因子：
2.2
作者：
C. Pitcher;P. Stangeby
通讯作者：
C. Pitcher;P. Stangeby
影响因子：
2.2
作者：
M. Kocan;F. Gennrich;A. Kendl;H. W. Müller
通讯作者：
M. Kocan;F. Gennrich;A. Kendl;H. W. Müller