Results 31 to 40 of about 321,964 (214)

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

Numerical Studies and Simulation of the Lower Hybrid Waves Current Drive by using Fokker – Planck Equation in NSST and HT-7 Tokamaks [PDF]

Journal of Sciences, Islamic Republic of Iran, 2014
Recent experiments on the spherical tokamak have discovered the conditions to create a powerful plasma and ensure easy shaping and amplification of stability, high bootstrap current and confinement energy.
A.A. Molavi Choobini
doaj  

Gyrokinetic simulations of spherical tokamaks [PDF]

Plasma Physics and Controlled Fusion, 2009
This paper reviews transport and confinement in spherical tokamaks (STs) and our current physics understanding of this that is partly based on gyrokinetic simulations. Equilibrium flow shear plays an important role, and we show how this is consistently included in the gyrokinetic framework for flows that greatly exceed the diamagnetic velocity. The key
Roach, C, Abel, I, Akers, R, Arter, W, Barnes, M, Camenen, Y, Casson, F, Colyer, G, Connor, J, Cowley, S, Dickinson, D, Dorland, W, Field, A, Guttenfelder, W, Hammett, G, Hastie, R, Highcock, E, Loureiro, N, Peeters, A, Reshko, M, Saarelma, S, Schekochihin, A, Valovic, M, Wilson, H   +23 more
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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

Transport Simulasion in a Burning Tokamak Plasma [PDF]

, 1992
A one-dimensional tokamak transport code (TASK/TR) has been developed to analyze the evolution of a burning plasma accompanied with fusion reaction. This code deals with the electrons, deuterons, tritons, thermalized α particles, fast α particles and ...
Kasai, Takashi, Furutani, Yoichiro, Fukuyama, Atsushi   +2 more
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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
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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

Integrated Plasma Physics Modelling for the Culham Steady State Spherical Tokamak Fusion Power Plant [PDF]

, 2019
Integrated modelling of important plasma physics issues related to the design of a steady-state spherical tokamak (ST) fusion power plant is described.
Cairns, R. A., Dnestrovskij, A., Dorland, W. D., McClements, K. G., Wilson, H. R., Christiansen, J. P., Akers, R. J., Tsaun, S., Lashmore-Davies, C. N., Hole, Matthew, Joiner, N., Ahn, J. W., Applegate, D., Roach, C. M., Voss, G. M., Knight, P. J., McGregor, D. E., O'Brien, Mark, Connor, J. W., Counsell, G., Kirk, A.   +20 more
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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
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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