The mega amp spherical tokamak (MAST) was a low aspect ratio device (R/a= 0.85/0.65~
1.3) with similar poloidal cross-section to other medium-size tokamaks. The physics …

A potentially important feature in a divertor design for a high-power tokamak is an extended
and expanded divertor leg. The upgrade to MAST will allow a wide range of such divertor …

A model-based approach to real-time reconstruction of the particle density profile in tokamak
plasmas is presented, based on a dynamic state estimator. Traditionally, the density profile …

One of the fundamental problems in tokamak fusion reactors is how to control the plasma
density and temperature in order to regulate the amount of fusion power produced by the …

The retention of deuterium fuel during MAST discharges has been studied using the method
of global gas balance. The results show that with inter-shot 4 He-GDC, the total number of …

A volume average particle and energy equations are applied to study the effects of particle
recycling on plasma parameters for aneutronic deuterium and helium-3 (D-3 He) fuel cycle …

During the early campaigns of the KSTAR project, feedback control of plasma density has
been successfully commissioned at the very first attempt by using a transfer function …

Morphological changes of graphite plasma facing component (PFC) were investigated with
various ion irradiation conditions which may change the sputtering yield and the scrape-off …

A new approach to real-time estimation and feedback control of the particle density profile in
tokamak plasmas is presented, based on ideas from Kalman filtering and H∞ robust control …

In this study, we are going to construct a model for particle and power balance in zero-
dimensional model. The new model is based on Hirooka four-reservoir (core, SOL, gas, and …