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A Particle Algorithm for Linear Kinetic Analysis in Tokamak Plasmas

✍ Scribed by Y. Todo; T. Sato

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
144 KB
Volume
141
Category
Article
ISSN
0021-9991

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✦ Synopsis

A particle algorithm for linear kinetic analysis in tokamak plasmas is developed. Linear kinetic stability of a tokamak plasma is analyzed as an initial value problem. Particles are used to sample plasma elements along equilibrium characteristics in 4-dimensional phase space (R, z, v , Β΅). Each particle is accompanied with a weight which is a function of the toroidal angle. Integrals in the phase space are evaluated through the weight function and the particle location in the 4-dimensional space. Destabilization of an n = 2 toroidal AlfvΓ©n eigenmode is investigated as a test of the algorithm, and convergence in number of used particles is assessed.

πŸ“œ SIMILAR VOLUMES

Fokker-Planck code for the quasi-linear
Fokker-Planck code for the quasi-linear absorption of electron cyclotron waves in a tokamak plasma
✍ R.L. Meyer; G. Giruzzi; V. Krivenski πŸ“‚ Article πŸ“… 1986 πŸ› Elsevier Science 🌐 English βš– 357 KB

We present the solution of the kinetic equation describing the quasi-linear evolution of the electron momentum distribution function under the influence of the electron cyclotron wave absorption, Coulomb collisions and the dc electric field in a tokamak plasma. The solution of the quasi-linear equat