Progress in the development and understanding of a high poloidal-beta tokamak operating scenario for an attractive fusion pilot plant

S Ding, AM Garofalo - Reviews of Modern Plasma Physics, 2022 - Springer
The high poloidal-beta (β P) regime was first proposed as a high bootstrap current scenario
for a steady-state fusion pilot plant (FPP) in the 1990s (Kikuchi in Nucl Fusion 30: 265 …

Steady-state tokamak research: Core physics

M Kikuchi, M Azumi - Reviews of Modern Physics, 2012 - APS
Tokamaks have demonstrated excellent plasma confinement capability because of their
symmetry but has an intrinsic drawback because of their pulsed inductive operation. Efforts …

Internal transport barrier on q=3 surface and poloidal plasma spin up in JT-60U high- discharges

Y Koide, M Kikuchi, M Mori, S Tsuji, S Ishida… - Physical review …, 1994 - APS
Spontaneous formation of an internal transport barrier was observed associated with
improved confinement in the high-β p discharges in the JT-60U tokamak. The radial location …

A high-density and high-confinement tokamak plasma regime for fusion energy

S Ding, AM Garofalo, HQ Wang, DB Weisberg, ZY Li… - Nature, 2024 - nature.com
The tokamak approach, utilizing a toroidal magnetic field configuration to confine a hot
plasma, is one of the most promising designs for developing reactors that can exploit …

Stability of high beta tokamak plasmas

EJ Strait - Physics of Plasmas, 1994 - pubs.aip.org
Stability at high beta (the ratio of plasma pressure to magnetic field pressure) is an important
requirement for a compact, economically attractive fusion reactor. It is also important in …

Design study of fusion DEMO plant at JAERI

K Tobita, S Nishio, M Enoeda, M Sato, T Isono… - Fusion Engineering and …, 2006 - Elsevier
Three options of fusion DEMO plant are proposed characterized by functions of the center
solenoid (CS). The prime option uses a downsized CS, which does not provide sufficient Vs …

The bootstrap current and its consequences

AG Peeters - Plasma Physics and Controlled Fusion, 2000 - iopscience.iop.org
The physical mechanism behind the bootstrap current is explained, and the consequences
are discussed with the emphasis on the two main objectives of fusion plasma, confinement …

Internal transport barriers in JET deuterium-tritium plasmas

C Gormezano, YF Baranov, CD Challis, I Coffey… - Physical review …, 1998 - APS
The observation of internal transport barriers (ITBs) in which ion thermal diffusivity is
reduced to a neoclassical level has been made for the first time in tokamak plasmas fueled …

Characteristics of internal transport barriers in JT-60U reversed shear plasmas

Y Sakamoto, Y Kamada, S Ide, T Fujita, H Shirai… - Nuclear …, 2001 - iopscience.iop.org
The characteristics of internal transport barrier (ITB) structures are studied and active ITB
control has been developed in JT-60U reversed shear plasmas. The following results are …

An analysis of controlled detachment by seeding various impurity species in high performance scenarios on DIII-D and EAST

D Eldon, HQ Wang, L Wang, J Barr, S Ding… - Nuclear Materials and …, 2021 - Elsevier
Experiments at DIII-D and EAST have demonstrated simultaneous high confinement,
divertor detachment, and active control of detachment level, all of which are required for …