Stochastic Diffusion of Energetic Ions in Wendelstein-Type Stellarators

  • A. V. Tykhyy Institute for Nuclear Research, Nat. Acad. of Sci. of Ukraine
Keywords: stochastic diffusion, stellarators, particle orbits, adiabatic invariants

Abstract

The collisionless stochastic diffusion of energetic ions in optimized stellarators of the Wendelstein type has been considered. The phenomenon concerned was predicted earlier in the framework of a simplified theory describing the separatrix crossing by ions. The jumps of the adiabatic invariant in magnetic configurations of a stellarator are calculated. The analysis of the results obtained confirms the importance of the stochastic diffusion and demonstrates that the diffusion coefficient can considerably exceed the available result.

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Published
2018-07-12
How to Cite
Tykhyy, A. (2018). Stochastic Diffusion of Energetic Ions in Wendelstein-Type Stellarators. Ukrainian Journal of Physics, 63(6), 495. https://doi.org/10.15407/ujpe63.6.495
Section
Plasma physics