RT Journal Article
T1 Ion kinetic transport in TJ-II
A1 Velasco, J. L.
A1 Castejón, F.
A1 Fernández Pérez, Luis Antonio
A1 Martín Mayor, Víctor
A1 Tarancón, A.
AB The ion Drift Kinetic Equation (DKE) which describes the ion coUisional transport is solved for the TJ-II device plasmas. This non-linear equation is computed by peribrming a mean field iterative calculation. In each step of the calculation, a Fokker-Planck equation is solved by means of the Langevin approach: one million particles are followed in a realistic TJ-II magnetic configuration, taking into account collisions and electric field. This allows to avoid the assumptions made in the usual neoclassical approach, namely considering radially narrow particle trajectories, diffusive transport, energy conservation and infinite parallel transport. As a consequence, global features of transport, not present in the customary neoclassical models, appear: non-diffusive transport and asymmetries on the magnetic surfaces.
PB American Institute of Physics
SN 0094-243x
YR 2008
FD 2008
LK https://hdl.handle.net/20.500.14352/51918
UL https://hdl.handle.net/20.500.14352/51918
LA eng
NO © 2008 American Institute of Physics. BIFI International Congress  (111th. 2008. Zaragoza, Spain). We acknowledge partial financial support from MEC (Spain), through research contract FIS2006-08533-C03, European Commission through contracts EGEE-II-03I688 and int.eu.grid 031857, and from BSCH-UCM. J.L. Velasco is a DGA (Aragón, Spain) fellow. Great accuracy has been achieved thanks to the use of the computing platform 0048257301 Zivis [27].
NO MEC (Spain)
NO European Commission
NO BSCH-UCM (Spain)
DS Docta Complutense
RD 9 abr 2025