Comment on the Model of Gormanet al.for Plasma Confinement Time in Stellarators

1969 ◽  
Vol 22 (18) ◽  
pp. 922-923
Author(s):  
T. Ohkawa ◽  
T. H. Jensen
1981 ◽  
Vol 20 (8) ◽  
pp. L601-L604 ◽  
Author(s):  
Kiyoshi Yatsu ◽  
Ikuo Wakaida ◽  
Yoichi Kiyohara ◽  
Akira Sakasai ◽  
Syoichi Miyoshi

2010 ◽  
Vol 36 (5) ◽  
pp. 487-488 ◽  
Author(s):  
A. M. Bishaev ◽  
A. I. Bugrova ◽  
M. V. Kozintseva ◽  
A. S. Lipatov ◽  
A. S. Sigov ◽  
...  

1994 ◽  
Vol 1 (5) ◽  
pp. 1123-1127 ◽  
Author(s):  
J. Notte ◽  
J. Fajans

1995 ◽  
Vol 54 (3) ◽  
pp. 393-400 ◽  
Author(s):  
Hui Gao ◽  
Kan Zhai ◽  
Yi-Zhi Wen ◽  
Shu-De Wan ◽  
Gui-Ding Wang ◽  
...  

Experiments using a biased multiblock limiter in the KT-5C tokamak show that positive biasing is more effective than negative biasing in modifying the edge electric field, suppressing fluctuations and improving plasma confinement. The biasing effect varies with the limiter area, the toroidal magnetic field and the biasing voltage. By positive biasing, the edge profiles of the plasma potential, the electron temperature and the density become steeper, resulting in a reduced edge particle flux, an increased global particle confinement time and lower fluctuation levels of the edge plasma.


2005 ◽  
Vol 47 (3) ◽  
pp. 505-519 ◽  
Author(s):  
E Asp ◽  
J Weiland ◽  
X Garbet ◽  
P Mantica ◽  
V Parail ◽  
...  
Keyword(s):  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Evgeny D. Filippov ◽  
Sergey S. Makarov ◽  
Konstantin F. Burdonov ◽  
Weipeng Yao ◽  
Guilhem Revet ◽  
...  

AbstractWe analyze, using experiments and 3D MHD numerical simulations, the dynamic and radiative properties of a plasma ablated by a laser (1 ns, 10$$^{12}$$ 12 –10$$^{13}$$ 13 W/cm$$^2$$ 2 ) from a solid target as it expands into a homogeneous, strong magnetic field (up to 30 T) that is transverse to its main expansion axis. We find that as early as 2 ns after the start of the expansion, the plasma becomes constrained by the magnetic field. As the magnetic field strength is increased, more plasma is confined close to the target and is heated by magnetic compression. We also observe that after $$\sim 8$$ ∼ 8  ns, the plasma is being overall shaped in a slab, with the plasma being compressed perpendicularly to the magnetic field, and being extended along the magnetic field direction. This dense slab rapidly expands into vacuum; however, it contains only $$\sim 2\%$$ ∼ 2 % of the total plasma. As a result of the higher density and increased heating of the plasma confined against the laser-irradiated solid target, there is a net enhancement of the total X-ray emissivity induced by the magnetization.


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