Pellet injection experiments and modelling

B Pégourié - Plasma Physics and Controlled Fusion, 2007 - iopscience.iop.org
During the last decade, significant progress has been made in the field of pellet injection
with (1) the identification of the drift of the deposited material in the inhomogeneous …

[HTML][HTML] Divertor plasma opacity effects

AA Pshenov, AS Kukushkin, AV Gorbunov… - Nuclear Materials and …, 2023 - Elsevier
In high recycling and detached plasma regimes the recycling region largely defines the
properties of the whole scrape-off layer plasma by setting up the density and temperature …

Thermal quench induced by a composite pellet-produced plasmoid

P Aleynikov, AM Arnold, BN Breizman… - Nuclear …, 2023 - iopscience.iop.org
Injecting shattered pellets is the critical concept of the envisaged ITER disruption mitigation
system (DMS). Rapid deposition of large amounts of material should presumably result in …

Penetration of supersonic gas jets into a tokamak

V Rozhansky, I Senichenkov, I Veselova… - Nuclear …, 2006 - iopscience.iop.org
The injection of high-pressure supersonic jets into the tokamak plasma is considered a
promising method of future thermonuclear reactor fuelling and as a tool for disruption …

On ablation of large Tungsten dust grains in edge plasma of fusion devices

SI Krasheninnikov, ED Marenkov - Journal of Nuclear Materials, 2015 - Elsevier
The model describing vapor induced shielding effects for W dust grain evaporation in the
edge plasmas is considered. It is shown that unlike the case of pellet ablation models, where …

Impurity radiation from a tokamak plasma

DK Morozov, EO Baronova, IY Senichenkov - Plasma Physics Reports, 2007 - Springer
In tokamak operating modes, energy balance is often governed by impurity radiation. This is
the case near the divertor plates, during impurity pellet injection, during controlled discharge …

On the Formation of a Plasma Cloud at the Ablation of a Pellet in a High-Temperature Magnetized Toroidal Plasma

OA Bakhareva, VY Sergeev, IA Sharov - JETP Letters, 2023 - Springer
The investigation of cold secondary plasma clouds near pellets ablating in the hot plasma of
magnetic confinement devices (tokamaks and stellarators) provides valuable information on …

[HTML][HTML] Ablation of high-Z material dust grains in edge plasmas of magnetic fusion devices

ED Marenkov, SI Krasheninnikov - Physics of Plasmas, 2014 - pubs.aip.org
The model, including shielding effects of high-Z dust grain ablation in tokamak edge plasma,
is presented. In a contrast to shielding models developed for pellets ablation in a hot plasma …

Spectroscopic study of a carbon pellet ablation cloud

M Goto, S Morita, M Koubiti - … of Physics B: Atomic, Molecular and …, 2010 - iopscience.iop.org
Carbon pellets were injected into high-temperature plasmas produced in the Large Helical
Device (LHD), a heliotron-type fusion experimental device. Radiation from a high-density …

Imaging polychromator for density measurements of polystyrene pellet cloud on the Large Helical Device

IA Sharov, VY Sergeev, IV Miroshnikov… - Review of Scientific …, 2015 - pubs.aip.org
Experimental data on spatial distributions of a pellet cloud electron density are necessary for
the development of many applications of pellet injection, namely, plasma fuelling, discharge …