UKAEA Papers

"Gyrokinetic applications in electron-positron and non-neutral plasmas"

• Alexey Mishchenko
• Daniel Kennedy
• Per Helander
• Axel Konies
• Gabriel Plunk
• Pavlos Xanthopoulos
• Alessandro Zocco

In this paper, we summarize our recent work on gyrokinetic applications in electron- positron and non-neutral plasma. The electrostatic stability of electron-positron plasmas was investigated in dipole and slab geometry, with and without ion admixture. The gyrokinetic dispersion relation was derived and, for the slab case, extended to non-neutra…

"Global gyrokinetic particle-in-cell simulations of internal kink instabilities"

• Alexey Mishchenko
• Alessandro Zocco

"PARTICLE TRANSPORT OF LHD"

• K. Tanaka
• K. Kawahata
• T. Tokuzawa
• T. Akiyama
• M. Yokoyama
• M. Shoji
• C. A. Michael
• L. N. Vyacheslavov
• S. Murakami
• A. Wakasa
• A. Mishchenko
• K. Muraoka
• S. Okajima
• H. Takenaga
• Lhd Experiment Group

Particle confinement processes are studied in detail on the Large Helical Device (LHD). Diffusion coefficients (D) and convection velocities (V) are estimated from density modulation experiments. The magnetic configuration and collisionality are widely scanned in order to investigate parameter dependences of D and V. To study the effect of the magn…