Results 21 to 30 of about 305,568 (222)

Modelling for JET Vertical Stabilization System [PDF]

, 2010
Nuclear fusion is, in a sense, the opposite of nuclear fission. Fission, which is a mature technology, produces energy through the splitting of heavy atoms like uranium in controlled chain reactions.
Bellizio, Teresa
core   +1 more source

Achievement of ion temperatures in excess of 100 million degrees Kelvin in the compact high-field spherical tokamak ST40

Nuclear Fusion, 2023
Ion temperatures of over 100 million degrees Kelvin (8.6 keV) have been produced in the ST40 compact high-field spherical tokamak (ST). Ion temperatures in excess of 5 keV have not previously been reached in any ST and have only been obtained in much ...
S.A.M. McNamara, O. Asunta, J. Bland, P.F. Buxton, C. Colgan, A. Dnestrovskii, M. Gemmell, M. Gryaznevich, D. Hoffman, F. Janky, J.B. Lister, H.F. Lowe, R.S. Mirfayzi, G. Naylor, V. Nemytov, J. Njau, T. Pyragius, A. Rengle, M. Romanelli, C. Romero, M. Sertoli, V. Shevchenko, J. Sinha, A. Sladkomedova, S. Sridhar, Y. Takase, P. Thomas, J. Varje, B. Vincent, H.V. Willett, J. Wood, D. Zakhar, D.J. Battaglia, S.M. Kaye, L.F. Delgado-Aparicio, R. Maingi, D. Mueller, M. Podesta, E. Delabie, B. Lomanowski, O. Marchuk, the ST40 Team   +41 more
doaj   +1 more source

Divertor optimisation and power handling in spherical tokamak reactors

Nuclear Materials and Energy, 2023
A key aspect in the design of a spherical tokamak reactor is the optimisation of the plasma equilibrium, together with a compatible divertor configuration, and the corresponding poloidal field system.
A. Hudoba, S. Newton, G. Voss, G. Cunningham, S. Henderson   +4 more
doaj   +1 more source

Adhesion force of W dust on tokamak W plasma-facing surfaces: The importance of the impact velocity

Nuclear Materials and Energy, 2019
The adhesion of tungsten (W) dust particles on W tokamak plasma-facing surfaces is investigated. When spherical dust hits the tokamak walls, its shape is altered as a contact area is created by the adhesion work and irreversible plastic deformation.
A. Autricque, F. Gensdarmes, S. Peillon, M. Sow, C. Grisolia   +4 more
doaj   +1 more source

Low n electromagnetic modes in spherical tokamaks

Plasma Physics and Controlled Fusion, 2021
Abstract The performance of spherical tokamak reactors depends on plasma β, and an upper limit is set by long-wavelength kinetic ballooning modes (KBMs). We examine how these modes become unstable in spherical-tokamak reactor relevant plasmas, which may contain significant fast-ion pressure.
J Chowdhury, B F McMillan
openaire   +1 more source

Control of resistive wall modes in the spherical tokamak

Nuclear Fusion, 2023
In this work, the MARS-F/K codes (Liu et al 2000 Phys. Plasmas 7 3681; Liu et al 2008 Phys. Plasmas 15 112503) are utilized to model the passive and active control of the n = 1 ( n is the toroidal mode number) resistive wall mode (RWM) in a spherical ...
Guoliang Xia, Yueqiang Liu, T.C. Hender, K.G. McClements, E. Trier, E. Tholerus   +5 more
doaj   +1 more source

Neutral Beam Coupling with Plasma in a Compact Fusion Neutron Source

Applied Sciences, 2022
FNS-ST is a fusion neutron source project based on a spherical tokamak (R/a = 0.5 m/0.3 m) with a steady-state neutron generation of ~1018 n/s. Neutral beam injection (NBI) is supposed to maintain steady-state operation, non-inductive current drive and ...
Eugenia Dlougach, Alexander Panasenkov, Boris Kuteev, Arkady Serikov   +3 more
doaj   +1 more source

Energy confinement scaling in the NCST spherical tokamak [PDF]

AIP Advances
Energy confinement time τE and its scaling law in the NanChang Spherical Tokamak (NCST) are investigated based on experimental data from NCST campaigns, with a focus on their dependence on plasma current (IP), toroidal magnetic field (BT), and electron ...
Y. Chen, X. C. Chen, X. F. Wu, S. Q. Liu
doaj   +1 more source

Replacing Tunable Parameters in Weather and Climate Models With State‐Dependent Functions Using Reinforcement Learning

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Weather and climate models rely on parameterizations to represent unresolved sub‐grid processes. Traditional schemes rely on fixed coefficients that are weakly constrained and tuned offline, contributing to persistent biases that limit their ability to adapt to underlying physics.
Pritthijit Nath, Sebastian Schemm, Henry Moss, Peter Haynes, Emily Shuckburgh, Mark J. Webb   +5 more
wiley   +1 more source

Simulations of Eddy currents in the Seville spherical tokamak [PDF]

, 2019
Achieving controlled nuclear fusion on Earth could be a decisive aspect on the climate change ght. It is also an exciting eld because of its scienti c and technological challenges.
López Aires, Daniel
core   +1 more source