It is noted that the ITER-FEAT is an experimental reactor system with aspect ratio A=3 while the spherical approach has aspect ratio near 1.4 that allows for much higher stable beta value but the engineering aspects a...It is noted that the ITER-FEAT is an experimental reactor system with aspect ratio A=3 while the spherical approach has aspect ratio near 1.4 that allows for much higher stable beta value but the engineering aspects are rather formidable. Recently,展开更多
Since the early 1960' s, the developments of the tokamak research make plasma flows a reality in many devices where neutral beam injections were used as heating in general and refueling in particular. Compared to ...Since the early 1960' s, the developments of the tokamak research make plasma flows a reality in many devices where neutral beam injections were used as heating in general and refueling in particular. Compared to the static axi-symmetric toroidal equilibrium展开更多
In large tokamak device and reactor designs, the relationship between the toroidal current and the edge safety factor is very important because this will determine the eventual device or reactor size according to MHD ...In large tokamak device and reactor designs, the relationship between the toroidal current and the edge safety factor is very important because this will determine the eventual device or reactor size according to MHD stability requirements. In many展开更多
In magnetic fusion research, two sorts of axi-symmetric toroidal equilibrium configuration are mostly interested. One is the conventional tokamak that has an aspect ratio 2. 8<A = R/α<5, the other is the spheri...In magnetic fusion research, two sorts of axi-symmetric toroidal equilibrium configuration are mostly interested. One is the conventional tokamak that has an aspect ratio 2. 8<A = R/α<5, the other is the spherical torus (the ST configuration) with A≤1.4.For tokamaks, it is generally observed that equilibrium configurations with large triangular deformation usually has the merit of stabilizing higher beta plasma and better confinement scaling so that higher βN/li value can be attained. This was also verified theoretically in the ballooning mode analysis.展开更多
A new concept about the next step tokamak device is recently proposed by academician LI Zhengwu. He indicated than device with the aspect ratio A near 2 is a blank in both the present-day tokamak devices and the propo...A new concept about the next step tokamak device is recently proposed by academician LI Zhengwu. He indicated than device with the aspect ratio A near 2 is a blank in both the present-day tokamak devices and the proposed or in construction tokamaks, including the ITER-FEAT.展开更多
Recently, to save the current drive power and to obtain more favorable confinement merit for a tokamak reactor, large fraction of bootstrap current sustained equilibrium has attracted great interests both theoreticall...Recently, to save the current drive power and to obtain more favorable confinement merit for a tokamak reactor, large fraction of bootstrap current sustained equilibrium has attracted great interests both theoretically and experimentally. We use an powerful expanding technique and the tokamak ordering to expand the GSh-E to obtain a series of ordinary differential equations which allow for different sets of input profiles. The fully bootstrap current sustained tokamak equilibria are then solved analytically.展开更多
文摘It is noted that the ITER-FEAT is an experimental reactor system with aspect ratio A=3 while the spherical approach has aspect ratio near 1.4 that allows for much higher stable beta value but the engineering aspects are rather formidable. Recently,
文摘Since the early 1960' s, the developments of the tokamak research make plasma flows a reality in many devices where neutral beam injections were used as heating in general and refueling in particular. Compared to the static axi-symmetric toroidal equilibrium
文摘In large tokamak device and reactor designs, the relationship between the toroidal current and the edge safety factor is very important because this will determine the eventual device or reactor size according to MHD stability requirements. In many
文摘In magnetic fusion research, two sorts of axi-symmetric toroidal equilibrium configuration are mostly interested. One is the conventional tokamak that has an aspect ratio 2. 8<A = R/α<5, the other is the spherical torus (the ST configuration) with A≤1.4.For tokamaks, it is generally observed that equilibrium configurations with large triangular deformation usually has the merit of stabilizing higher beta plasma and better confinement scaling so that higher βN/li value can be attained. This was also verified theoretically in the ballooning mode analysis.
文摘A new concept about the next step tokamak device is recently proposed by academician LI Zhengwu. He indicated than device with the aspect ratio A near 2 is a blank in both the present-day tokamak devices and the proposed or in construction tokamaks, including the ITER-FEAT.
文摘Recently, to save the current drive power and to obtain more favorable confinement merit for a tokamak reactor, large fraction of bootstrap current sustained equilibrium has attracted great interests both theoretically and experimentally. We use an powerful expanding technique and the tokamak ordering to expand the GSh-E to obtain a series of ordinary differential equations which allow for different sets of input profiles. The fully bootstrap current sustained tokamak equilibria are then solved analytically.
