Published in Plasma Physics and Controlled Fusion
Plasma-based optics has emerged as an attractive alternative to traditional solid-state optics for high-power laser manipulation due to its higher damage threshold. In this work, we propose a plasma zone plate (PZP) driven by the ponderomotive force of a Laguerre–Gaussian beam when it irradiates an underdense plasma slice. We formulate the theory o...
Published in Plasma Physics and Controlled Fusion
In a previous work (Alvarez Laguna et al 2022 Phys. Plasmas 29 083507), we have developed a non-linear moment model for electrons that self-consistently captures non-Maxwellian electron energy distribution function effects. The model does not rely in the local approximation and the transport coefficients are calculated by expanding the distribution...
Published in Plasma Physics and Controlled Fusion
Large-scale and systematic calculations of scattering amplitudes and cross-sections for charged particle collisions are of fundamental importance for understanding the physical properties of materials in different research fields. However, the elaborated theoretical methods for cross-sections are generally restricted to a finite range of impact ene...
Published in Plasma Physics and Controlled Fusion
The required heating power, PLH , to access the high confinement regime (H-mode) in tritium containing plasmas is investigated in JET with ITER-like wall at a toroidal magnetic field of Bt=1.8 T and a plasma current of Ip=1.7 MA. PLH , also referred to as the L-H power threshold, is determined in plasmas of pure tritium as well as mixtures of hydro...
Published in Plasma Physics and Controlled Fusion
The MHD equilibrium equation that describes plasmas rotating in the toroidal direction is solved using the Solov’ev ansatz. The equilibria have 2 X-points and the shape of the plasma can be controlled by fixing the values of the aspect ratio, elongation, triangularity, squareness and curvature at the equatorial points. The plasma current, total β a...
Published in Plasma Physics and Controlled Fusion
Previous work (Robinson 2022 Plasma Phys. Control. Fusion 64 105014) has shown that there is a regime of ion beam transport in plasmas where the electron–ion drag becomes so intense that the electron temperature rapidly rises to temperatures at which the electron–ion drag is strongly reduced. This regime is mainly thought to pertain to short-pulse ...
Published in Plasma Physics and Controlled Fusion
Erratum for Plasma Phys. Control. Fusion 64 115005
Published in Plasma Physics and Controlled Fusion
A coherent mode (CM) induced by the supersonic molecular beam injection (SMBI) was observed in Ohmic plasmas of EAST tokamak. The CM existed in the spectra of the electron temperature fluctuation and density fluctuation, but not in the spectrum of Mirnov fluctuation. The radial location of the CM was about 10 cm inside the separatrix (normalized mi...
Published in Plasma Physics and Controlled Fusion
Trapped ion modes (TIMs) belong to the family of ion temperature gradient (ITG) modes, which are one of the important ingredients in heat turbulent transport at the ion scale in tokamak plasmas. A global linear analysis of a reduced gyro-bounce kinetic model for trapped particle modes is performed, and a spectral method is proposed to solve the dis...
Published in Plasma Physics and Controlled Fusion
The flow of liquid metals in straight rectangular channels with an externally applied transverse magnetic field is considered for breeding blankets in tokamak fusion reactors. Under the tokamak magnetic field, the liquid metal experiences the magnetohydrodynamic (MHD) effect that enhances the laminarization of the flow. In geometric singularities, ...
