Open AccessFokker-Planck Modelling of Delayed Loss of Charged Fusion Products in TFTR.
Author(s) -
J. W. Edenstrasser,
V. Goloborod’ko,
S N Reznik,
V A Yavorskij,
S Zweben
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/2682
Subject(s) - deuterium , tokamak fusion test reactor , fusion , tokamak , plasma , ripple , radius , atomic physics , flux (metallurgy) , nuclear physics , fusion power , physics , tritium , nuclear fusion , materials science , thermodynamics , linguistics , philosophy , power (physics) , computer security , computer science , metallurgy
The results of a Fokker-Planck simulation of the ripple-induced loss of charged fusion products in the Tokamak Fusion Test Reactor (TFTR) are presented. It is shown that the main features of the measured "delayed loss" of partially thermalized fusion products, such as the differences between deuterium-deuterium and deuterium-tritium discharges, the plasma current and major radius dependencies, etc., are in satisfactory agreement with the classical collisional ripple transport mechanism. The inclusion of the inward shift of the vacuum flux surfaces turns out to be necessary for an adequate and consistent explanation of the origin of the partially thermalized fusion product loss to the bottom of TFTR