Results 81 to 90 of about 6,012 (210)

Self‐organization of plasma edge turbulence in interaction with recycling neutrals

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract Experimental results from several tokamaks suggest a strong impact of divertor density regimes on turbulent transport in the edge plasma. Reciprocally, the change in transverse transport and SOL width affects the access to density regimes, making it a fundamental topic for heat exhaust issue. Such phenomenology is highly nonlinear and can only
V. Quadri, P. Tamain, Y. Marandet, H. Bufferand, N. Rivals, G. Ciraolo, G. Falchetto, R. Düll, H. Yang   +8 more
wiley   +1 more source

Toward plasma drifts in EMC3: Implementation of gradient, divergence, and particle tracing schemes

Contributions to Plasma Physics, Volume 64, Issue 7-8, August-September 2024.
Abstract This paper presents a first implementation of gradient, divergence, and particle tracing schemes for the EMC3 code, a stochastic 3D plasma fluid code widely employed for edge plasma and impurity transport modeling in tokamaks and stellarators.
Ruben De Wolf, Felix Reimold, Yuhe Feng, Matthieu Jacobs, Wouter Dekeyser, Giovanni Samaey, Martine Baelmans   +6 more
wiley   +1 more source

Summary of the 29th IAEA Fusion Energy Conference under the topics materials, in-vessel components, next-step machines, and licensing and safety and socio-economic and environment

Nuclear Fusion
This paper represents one half of a set of two, covering the TECHNOLOGY presentations at the Fusion Energy Conference (FEC), held in London, UK, in October 2023.
A. Quadling
doaj   +1 more source

Mechanical model for a full fusion tokamak enabled by supercomputing

Nuclear Fusion
Determining stress and strain in a component of a fusion power plant involves defining boundary conditions for the mechanical equilibrium equations, which implies the availability of a full reactor model for defining those conditions.
W.M.E. Ellis, L. Reali, A. Davis, H.M. Brooks, I. Katramados, A.J. Thornton, R.J. Akers, S.L. Dudarev   +7 more
doaj   +1 more source

SOFT: A synthetic synchrotron diagnostic for runaway electrons

, 2017
Improved understanding of the dynamics of runaway electrons can be obtained by measurement and interpretation of their synchrotron radiation emission.
Embréus, Ola, Fülöp, Tünde, Granetz, Robert S., Hoppe, Mathias, Stahl, Adam, Tinguely, R. Alexander   +5 more
core   +1 more source

Nonlinear fishbone dynamics in spherical tokamaks

Nuclear Fusion, 2016
Abstract Linear and nonlinear kinetic-MHD hybrid simulations have been carried out to investigate linear stability and nonlinear dynamics of beam-driven fishbone instability in spherical tokamak plasmas. Realistic NSTX parameters with finite toroidal rotation were used.
Feng Wang, G.Y. Fu, Wei Shen
openaire   +2 more sources

Progress of the Plasma Centerpost for the PROTO-SPHERA Spherical Tokamak

Energies, 2016
Plasma properties can be useful in a wide spectrum of applications. Experimental projects on controlled nuclear fusion are the most challenging of these applications and, at the same time, the best way to approach plasma science.
Alessandro Lampasi, Giuseppe Maffia, Franco Alladio, Luca Boncagni, Federica Causa, Edmondo Giovannozzi, Luigi Andrea Grosso, Alessandro Mancuso, Paolo Micozzi, Valerio Piergotti, Giuliano Rocchi, Alessandro Sibio, Benedetto Tilia, Vincenzo Zanza   +13 more
doaj   +1 more source

First Results of the Implementation of the Doppler Backscattering Diagnostic for the Investigation of the Transition to H-Mode in the Spherical Tokamak Globus-M2. [PDF]

Sensors (Basel), 2023
Ponomarenko A, Yashin A, Kurskiev G, Minaev V, Petrov A, Petrov Y, Sakharov N, Zhiltsov N.   +7 more
europepmc   +1 more source

Ion acceleration during internal magnetic reconnection events in TST-2

, 2004
Characteristics of ion acceleration in the internal magnetic reconnection events (IRE) have been studied by means of a neutral particle energy analyzer (NPA) in Tokyo Spherical Tokamak (TST-2). The major and minor radii are 0.38 m and 0.25m, respectively.
Aramasu, M., Ejiri, A., Hanada, K., Hasegawa, M., Higashijima, A., Hoshika, Hiroyuki, Idei, H., Iyomasa, A., Kamada, Y., Kasahara, H., Kawasaki, S., Nakamura, K., Nakashima, H., Ohara, S., Sakamoto, M., Sasaki, K., Sato, K., Shiraiwa, S., Takagi, Y., Takase, Y., Yamada, T., Zushi, H.   +21 more
core   +1 more source

Heating and current drive in STEP: why neutral beam injection is not desirable

Nuclear Fusion
Spherical Tokamak for Energy Production (STEP) is the UK’s prototype fusion power plant programme aiming to demonstrate net electrical output from a spherical tokamak. The plasma scenarios require a completely non-inductive current drive for the flat-top
Thomas Wilson, Mark Henderson, Hana El-Haroun, Anurag Saigiridhari, Emmi Tholerus   +4 more
doaj   +1 more source