Self-consistent description of the plasma and impurity transport in tokamak reactor. Pt. 2, Results of calculations

• Autorzy: Zagórski R.
• Języki publikacji: EN

Abstrakty

EN

A model has been developed which is capable of describing in a self-consistent way the plasma dynamics in the central and edge regions of a fusion reactor. The core plasma is treated in the frame of the 0D model in which empirical scaling law for energy confinement time is included. The model accounts for the energy losses due to bremsstrahlung and line radiation as well as alpha particle heating. A 1D analytical model for plasma and impurity transport outside the last closed magnetic surface (LCMS) is applied. The model accounts for strong gradients of plasma parameters along magnetic field lines in the divertor. The sputtering phenomena at the plate and radiating cooling by injected impurities are trated self-consistently in the model. The numerical code BILDIV has been built in order to solve the nonlinear set of equations describing the self-consistent transport of plasma and impurities in the SOL. The model has been confirmed by comparison with other models and experiments. Analytical estimates have been evalued showing the most important features of the self-consistent plasma behavior in the tokamak reactor. These estimations have been confirmed by numerical calculations. The model has been used to investigate operating regimes of the ignition experiment. Analysis has been performed for different first wall materials (C, Ni, Mo, W) for ITER-like tokamak.

Słowa kluczowe

EN

plasma physics

PL

fizyka plazmy; tokamak; zanieczyszczenia w plazmie; zjawisko transportu

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 1998
• Tom: Vol. 39, no 2
• Strony: 315--348
• Opis fizyczny: Bibliogr. 41 poz.,Rys., wykr.,

Twórcy

autor

Zagórski R.

• Institute of Plasma Physics and Laser Microfusion, P.O.Box 49, 00-908 Warsaw, Poland