Results 21 to 30 of about 6,012 (210)

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

Large density amplification measured on jets ejected from a magnetized plasma gun [PDF]

, 2007
Observation of a large density amplification in the collimating plasma jet ejected from a coplanar coaxial plasma gun is reported. The jet velocity is ~30 km s^-1 and the electron density increases from ~10^20 to 10^(22–23) m^-3.
Bellan, Paul M., You, Setthivoine, Yun, Gunsu S.   +2 more
core   +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

On non existence of tokamak equilibria with purely poloidal flow [PDF]

, 2006
It is proved that irrespective of compressibility tokamak steady states with purely poloidal mass flow can not exist in the framework of either magnetohydrodynamics (MHD) or Hall MHD models.
G. N. Throumoulopoulos, H. Tasso, H. Weitzner, Morozov A. I.   +3 more
core   +2 more sources

Microtearing modes in spherical and conventional tokamaks [PDF]

Nuclear Fusion, 2013
18 pages, 9 ...
Moradi, S., Pusztai, I., Guttenfelder, W., Fülöp, T., Mollén, A.   +4 more
openaire   +2 more sources

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

Ideal magnetohydrodynamic simulations of unmagnetized dense plasma jet injection into a hot strongly magnetized plasma

, 2011
We present results from three-dimensional ideal magnetohydrodynamic simulations of unmagnetized dense plasma jet injection into a uniform hot strongly magnetized plasma, with the aim of providing insight into core fueling of a tokamak with parameters ...
Arseniev, Bengtsson, Castel, Cheifetz, Goodin, H. Jin, Hamilton, Hara, Hara, Hotchkis, Hua, Hwang, Lhersonneau, Li, Luo, Möller, Nilsson, Orlandi, Rodriguez-Guzman, S.-Y. Yu, Sheihk, Sheikh, Sheikh, Sheline, Shizuma, Sieja, Skalski, Smith, Stephens, Sun, Urban, Urban, Velazquez, Verma, Wood, Wu, X.-H. Zhou, Y. Sun, Y.-C. Yang, Y.-H. Zhang, Y.-X. Liu, Yang, Yeoh   +42 more
core   +1 more source

A Neutron Source Based on Spherical Tokamak

Energies
The paper presents a conceptual study of a neutron source based on a spherical tokamak (ST). The plasma scenario chosen for the ST is non-thermal fusion (hot ion mode), which is extensively used on machines like JET and TFTR deuterium–tritium (DT ...
Francesco P. Orsitto, Nunzio Burgio, Marco Ciotti, Guglielmo Lomonaco, Fabio Panza, Alfonso Santagata   +5 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

Two-fluid and magnetohydrodynamic modelling of magnetic reconnection in the MAST spherical tokamak and the solar corona

, 2015
Twisted magnetic flux ropes are ubiquitous in space and laboratory plasmas, and the merging of such flux ropes through magnetic reconnection is an important mechanism for restructuring magnetic fields and releasing free magnetic energy.
Browning, P. K., Cardnell, S., Evans, M., Lucini, F. Arese, Lukin, V. S., McClements, K. G., Stanier, A.   +6 more
core   +1 more source