swMATH ID: 
19957

Software Authors: 
Pfefferlé, D.; Cooper, W.A.; Graves, J.P.; Misev, C.

Description: 
VENUSLEVIS and its splineFourier interpolation of 3D toroidal magnetic field representation for guidingcentre and fullorbit simulations of charged energetic particles. Curvilinear guidingcentre drift and fullorbit equations of motion are presented as implemented in the VENUSLEVIS code. A dedicated interpolation scheme based on Fourier reconstruction in the toroidal and poloidal directions and cubic spline in the radial direction of flux coordinate systems is detailed. This interpolation method exactly preserves the order of the RK4 integrating scheme which is crucial for the investigation of fast particle trajectories in 3D magnetic structures such as helical saturated tokamak plasma states, stellarator geometry and resonant magnetic perturbations (RMP). The initialisation of particles with respect to the guidingcentre is discussed. Two approaches to implement RMPs in orbit simulations are presented, one where the vacuum field is added to the 2D equilibrium, creating islands and stochastic regions, the other considering 3D nested fluxsurfaces equilibrium including the RMPs. 
Homepage: 
http://www.sciencedirect.com/science/article/pii/S0010465514002744

Keywords: 
orbit simulations;
magnetic equilibrium representation;
fast ion transport;
Tokamak plasmas;
curvilinear coordinates

Related Software: 

Referenced in: 
1 Publication
