scholarly journals First observation of unlocking the locked mode by electrode biasing on J-TEXT tokamak

2020 ◽  
Vol 61 (2) ◽  
pp. 026001
Author(s):  
Zhipeng Chen ◽  
Tong Wang ◽  
Qingquan Yu ◽  
Qiming Hu ◽  
Da Li ◽  
...  
Keyword(s):  
Electrode Biasing

Investigation of the toroidal flow damping in the edge plasma of J-TEXT tokamak with an electrode biasing

2021 ◽  
Vol 28 (9) ◽  
pp. 092301
Author(s):  
Hai Liu ◽  
Bo Zhang ◽  
Yuhong Xu ◽  
Zhipeng Chen ◽  
Jun Cheng ◽  
...  
Keyword(s):  
Edge Plasma ◽  
Electrode Biasing

Effects of edge biasing on blob dynamics and associated transport in the edge of the J-TEXT tokamak

2022 ◽  
Author(s):  
Wei Li ◽  
Yuhong Xu ◽  
Jun Cheng ◽  
Hai Liu ◽  
Zhipeng Chen ◽  
...  
Keyword(s):  
Electric Field ◽  
Large Scale ◽  
Turbulent Transport ◽  
Radial Electric Field ◽  
Plasma Confinement ◽  
Flow Shear ◽  
Theoretical Predictions ◽  
Outward Motion ◽  
Electrode Biasing ◽  
Particle Confinement

Abstract Effects of edge radial electric field Er and Er × B flow shear on edge turbulence and turbulent transport, in particular, on large-scale blobs and blobby transport have been investigated in the positive and negative biasing discharges in the J-TEXT tokamak. The results show that under certain conditions, the positive electrode biasing induces better plasma confinement than the negative biasing. Further studies reveal that in addition to flow shear effects on blob dynamics, the local radial electric field at the edge region plays a significant role in repulsion of the blobs and associated transport, leading to improvement of particle confinement when the outward motion of the blobs is blocked. The results are in accordance with theoretical predictions.

scholarly journals The rapid response of 2/1 tearing mode to electrode biasing in J-TEXT experiments

2019 ◽  
Vol 61 (6) ◽  
pp. 065017
Author(s):  
Tong Wang ◽  
Zhipeng Chen ◽  
Qiming Hu ◽  
Hai Liu ◽  
Q Yu ◽  
...  
Keyword(s):  
Rapid Response ◽  
Tearing Mode ◽  
Electrode Biasing

Ion source electrode biasing technique for microsecond beam pulse rise times

1998 ◽  
Vol 69 (2) ◽  
pp. 1060-1062 ◽  
Author(s):  
L. T. Perkins ◽  
J. W. Kwan ◽  
K. N. Leung ◽  
M. Rickard ◽  
M. D. Williams
Keyword(s):  
Ion Source ◽  
Electrode Biasing ◽  
Source Electrode

Transport and fluctuations during electrode biasing on TJ-II

2005 ◽  
Vol 55 (12) ◽  
pp. 1589-1596 ◽  
Author(s):  
C. Silva ◽  
B. Goncalves ◽  
M. A. Pedrosa ◽  
C. Hidalgo ◽  
K. McCarthy ◽  
...  
Keyword(s):  
Electrode Biasing

The construction of an electrode biasing system for driving plasma rotation in J-TEXT tokamak

2014 ◽  
Vol 85 (5) ◽  
pp. 053504 ◽  
Author(s):  
T. Z. Zhu ◽  
Z. P. Chen ◽  
Yue Sun ◽  
J. Y. Nan ◽  
H. Liu ◽  
...  
Keyword(s):  
Plasma Rotation ◽  
Electrode Biasing

Design and Manufacturing of the Electrode Biasing System for the Tokamak

2012 ◽  
Vol 40 (3) ◽  
pp. 892-897 ◽  
Author(s):  
Ahmad Salar Elahi ◽  
Mahmood Ghoranneviss ◽  
Siamak Mohammadi ◽  
Reza Arvin
Keyword(s):  
Design And Manufacturing ◽  
Electrode Biasing

Observations of zonal flows in electrode biasing experiments on the Joint Texas Experimental tokamak

2016 ◽  
Vol 23 (4) ◽  
pp. 042305 ◽  
Author(s):  
H. G. Shen ◽  
T. Lan ◽  
Z. P. Chen ◽  
D. F. Kong ◽  
H. L. Zhao ◽  
...  
Keyword(s):  
Zonal Flows ◽  
Electrode Biasing

Dual-electrode biasing for controlling ion-to-adatom flux ratio during ion-assisted deposition of diamond

2001 ◽  
Vol 89 (9) ◽  
pp. 4714-4718 ◽  
Author(s):  
Kungen Teii ◽  
Masaru Hori ◽  
Toshio Goto
Keyword(s):  
Flux Ratio ◽  
Electrode Biasing
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