Title :
Reconstruction of plasma current profile of tokamaks using combinatorial optimization techniques
Author :
Kishimoto, Maki ; Sakasai, Kaoru ; Ara, Katuyuki ; Fujita, Takaaki ; Suzuki, Yasuo
Author_Institution :
Tokai Res. Establ., JAERI, Ibaraki, Japan
fDate :
4/1/1996 12:00:00 AM
Abstract :
New methods to reconstruct plasma shape and plasma current distribution from magnetic measurements are proposed. The reconstruction of plasma current profile from magnetic measurements is regarded as an optimum allocation problem of currents into cross section of the vacuum vessel of the tokamak. For solving this optimization problem, we use two types of solutions: a genetic algorithm and a combined method of a Hopfield neural network and a genetic algorithm. The effectiveness of these methods is shown by the application of these techniques to JT-60U plasmas
Keywords :
Hopfield neural nets; combinatorial mathematics; genetic algorithms; plasma diagnostics; plasma properties; plasma toroidal confinement; Hopfield neural network; JT-60U plasmas; combinatorial optimization techniques; genetic algorithm; magnetic measurements; plasma current profile; plasma shape; tokamaks; vacuum vessel; Current distribution; Genetic algorithms; Magnetic field measurement; Magnetic flux; Optimization methods; Plasma measurements; Plasma properties; Probes; Shape measurement; Tokamaks;
Journal_Title :
Plasma Science, IEEE Transactions on
