Generation of localized lower-hybrid current drive by temperature perturbations

Benchmarking of Lower Hybrid Current Drive Codes with Application to

This paper discusses the results of a benchmark exercise in which the predictions of several simulation models for lower hybrid current drive (LHCD) were compared using parameters typical of the steady state operating scenario in the ITER device (the so-called Scenario 4). The most complete LHCD simulation models that were used combined 2D velocity space Fokker Planck solvers with toroidal ray ...

Pfc / Ja - 85 - 28 Analytical Model for the Perpendicular Temperature Enhancement in Lower - Hybrid Current Drive

The enhancement of the perpendicular temperature inside the resonant region, observed in numerical studies of the two-dimensional Fokker-Planck equation, combined with unidirectional RF quasilinear diffusion, is modeled on the basis of the collisional relaxation equations. Strong RF diffusion is assumed and relativistic effects are taken into account. The resulting enhanced perpendicular temper...

A Lower Hybrid Current Drive System for ITER

A 20 MW/5GHz Lower Hybrid Current Drive (LHCD) system was initially due to be commissioned and used for the second mission of ITER, i.e. the Q=5 steady state target. Though not part of currently planned procurement phase, it is now under consideration for an earlier delivery. In this paper, both physics and technology conceptual designs are reviewed. Furthermore, an appropriate work plan is als...

Co- and Counter-current Rotation Induced by Lower Hybrid Current Drive in Tokamak Plasmas

Fast Electron Transport In Lower - Hybrid Current Drive

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