4.6 Article

Divertor plasma opacity effects

Related references

Note: Only part of the references are listed.
Article Physics, Fluids & Plasmas

SOLPS-ITER simulations of a CPS-based liquid metal divertor for the EU DEMO: Li vs Sn

G. F. Nallo et al.

Summary: In this study, the effect of installing a liquid metal divertor (LMD) using a capillary-porous structure in the EU DEMO tokamak was investigated. The results showed that introducing vapor shielding and Ar seeding can significantly reduce the target heat load and metal erosion rate. Sn appears to be more promising than Li. The operational window of an LMD can be expanded through Ar seeding.

NUCLEAR FUSION (2022)

Article Physics, Fluids & Plasmas

Experimental investigation of L- and H-mode detachment via the divertor Thomson scattering at ASDEX Upgrade

M. Cavedon et al.

Summary: This study demonstrates the capabilities of the newly installed divertor Thomson Scattering diagnostic at ASDEX Upgrade, providing new insights into detachment physics through the measurement of electron density and temperature under different divertor conditions.

NUCLEAR FUSION (2022)

Article Physics, Fluids & Plasmas

Modeling of deuterium and carbon radiation transport in MAST-U tokamak advanced divertors

V. A. Soukhanovskii et al.

Summary: This study predicts the modest effects of deuterium and carbon radiation opacity in the Super-X and snowflake divertor plasmas in the MAST Upgrade tokamak. The results show that radiation transport has minimal impact on the divertor, and the plasma can still reach detached regimes. Additionally, the divertor plasma is optically thin to other spectral lines, and the ionization and recombination rates of deuterium are unaffected by radiation transport.

NUCLEAR FUSION (2022)

Article Physics, Fluids & Plasmas

Comparison between MAST-U conventional and Super-X configurations through SOLPS-ITER modelling

A. Fil et al.

Summary: In this study, the possible benefits of the MAST-U Super-X divertor and neutral baffling geometry in achieving detachment are quantified using the SOLPS-ITER code. The results show that the Super-X divertor can significantly reduce the density detachment threshold in MAST-U by increasing the total flux expansion. Furthermore, the study reveals that variations in the strike-point angle are complex to interpret in a tightly baffled geometry, and a lower detachment threshold does not necessarily imply a target normal pointing more towards the separatrix.

NUCLEAR FUSION (2022)

Article Physics, Fluids & Plasmas

X-point radiation, its control and an ELM suppressed radiating regime at the ASDEX Upgrade tokamak

M. Bernert et al.

Summary: Future fusion reactors require safe and steady state divertor operation, achieved through seeding impurities like nitrogen. Controlling the position of the X-point radiator allows for ELM-suppressed mode and high energy confinement at high density.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Modeling the vapor shielding of a liquid lithium divertor target using SOLPS 4.3 code

E. D. Marenkov et al.

Summary: The simulations of a liquid lithium divertor show a shielding effect that reduces the target heat flux, but also result in strong plasma dilution in high-power regimes, making it difficult to rely on the shielding effect for heat flux control in practical terms.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

A novel hydrogenic spectroscopic technique for inferring the role of plasma-molecule interaction on power and particle balance during detached conditions

K. Verhaegh et al.

Summary: This study investigates a new Balmer Spectroscopy technique for Plasma-Molecule Interaction, demonstrating the substantial impact of plasma-molecule interactions on Hα emission during detachment and Molecular Activated Recombination. The results of the BaSPMI technique analysis suggest that the hydrogenic line series can be significantly influenced by plasma-molecule interactions, which has important implications for diagnosing divertor plasmas using atomic hydrogen spectroscopy.

PLASMA PHYSICS AND CONTROLLED FUSION (2021)

Article Physics, Fluids & Plasmas

Power exhaust concepts and divertor designs for Japanese and European DEMO fusion reactors

N. Asakura et al.

Summary: Concepts for power exhaust and divertor design have been developed with high priority in the pre-conceptual design phase of the Japan-Europe broader approach DEMO design activity. Different exhaust concepts for main plasma and divertor have been proposed by Japan and Europe to address the large power exhaust and radiative cooling issues. Power exhaust simulations showed the need for a large divertor radiation fraction to reduce peak heat flux and electron and ion temperatures.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

Performance of the Conventional Divertor in TRT

A. S. Kukushkin et al.

Summary: The study indicates that for conventional TRT divertors, there is a narrow operational window due to the compatibility issues between the heat load of the divertor plates and the confinement of the core plasma.

PLASMA PHYSICS REPORTS (2021)

Article Physics, Fluids & Plasmas

Tokamak with Reactor Technologies (TRT): Concept, Missions, Key Distinctive Features and Expected Characteristics

A. Krasilnikov et al.

Summary: Developments in high-temperature superconductors have allowed for the design of a tokamak reactor with high magnetic fields, promising plasma fusion with energy gains at reduced sizes and costs. The Tokamak Reactor Technologies (TRT) can operate in quasi-stationary regimes with various plasmas and has key technologies integrated into one facility, serving as a prototype for fusion reactors and neutron sources.

PLASMA PHYSICS REPORTS (2021)

Article Physics, Fluids & Plasmas

Approaching the radiating X-point in SOLPS-ITER modeling of ASDEX Upgrade H-mode discharges

I. Yu Senichenkov et al.

Summary: The experimental trend of reaching the radiating X-point with nitrogen seeding in ASDEX Upgrade is successfully reproduced by SOLPS-ITER code modeling, but stable low-temperature regimes achieved in the experiment cannot be simulated. Adjustments in fueling, seeding, and pumping rates can potentially achieve these stable regimes in modeling.

PLASMA PHYSICS AND CONTROLLED FUSION (2021)

Article Physics, Fluids & Plasmas

The role of plasma-molecule interactions on power and particle balance during detachment on the TCV tokamak

K. Verhaegh et al.

Summary: The experimental results and simulations indicate that D-2(+) plays a significant role in plasma-molecule interactions in the tokamak, contributing considerably to particle and power losses.

NUCLEAR FUSION (2021)

Article Physics, Fluids & Plasmas

A hybrid fluid-kinetic neutral model based on a micro-macro decomposition in the SOLPS-ITER plasma edge code suite

N. Horsten et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2020)

Article Physics, Fluids & Plasmas

Interpretation of Lyman opacity measurements in JET with the ITER-like wall using a particle balance approach

B. Lomanowski et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2020)

Article Physics, Fluids & Plasmas

Bifurcations and oscillations in divertor plasma

A. S. Kukushkin et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2019)

Article Physics, Fluids & Plasmas

On the role of hydrogen radiation absorption in divertor plasma detachment

A. A. Pshenov et al.

NUCLEAR FUSION (2019)

Article Nuclear Science & Technology

Simulations of a high-density, highly-radiating lithium divertor

T. D. Rognlien et al.

NUCLEAR MATERIALS AND ENERGY (2019)

Article Nuclear Science & Technology

Implementation of a 9-point stencil in SOLPS-ITER and implications for Alcator C-Mod divertor plasma simulations

Wouter Dekeyser et al.

NUCLEAR MATERIALS AND ENERGY (2019)

Article Nuclear Science & Technology

Impact of drifts on divertor power exhaust in DIII-D

A. E. Jaervinen et al.

NUCLEAR MATERIALS AND ENERGY (2019)

Article Physics, Fluids & Plasmas

Multi-level model of radiation transport in inhomogeneous plasma

E. Marenkov et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2018)

Article Physics, Fluids & Plasmas

Basic physical processes and reduced models for plasma detachment

P. C. Stangeby

PLASMA PHYSICS AND CONTROLLED FUSION (2018)

Article Physics, Fluids & Plasmas

Structure of the classical scrape-off layer of a tokamak

V. Rozhansky et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2018)

Article Physics, Fluids & Plasmas

Plasma detachment in divertor tokamaks

A. W. Leonard

PLASMA PHYSICS AND CONTROLLED FUSION (2018)

Review Physics, Fluids & Plasmas

Physics of ultimate detachment of a tokamak divertor plasma

S. I. Krasheninnikov et al.

JOURNAL OF PLASMA PHYSICS (2017)

Article Physics, Fluids & Plasmas

Radiative detached divertor with acceptable separatrix Zeff

A. Yu. Pigarov

PHYSICS OF PLASMAS (2017)

Article Physics, Fluids & Plasmas

On detachment asymmetry and stability

A. A. Pshenov et al.

PHYSICS OF PLASMAS (2017)

Review Physics, Fluids & Plasmas

A review of radiative detachment studies in tokamak advanced magnetic divertor configurations

V. A. Soukhanovskii

PLASMA PHYSICS AND CONTROLLED FUSION (2017)

Article Physics, Fluids & Plasmas

Development of a hybrid kinetic-fluid model for line radiation transport in magnetic fusion plasmas

J. Rosato et al.

HIGH ENERGY DENSITY PHYSICS (2017)

Article Nuclear Science & Technology

Energy balance in plasma detachment

A. A. Pshenov et al.

NUCLEAR MATERIALS AND ENERGY (2017)

Article Physics, Fluids & Plasmas

Hybrid Formulation of Radiation Transport in Optically Thick Divertor Plasmas

J. Rosato et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2016)

Article Physics, Fluids & Plasmas

Vapor shielding models and the energy absorbed by divertor targets during transient events

D. I. Skovorodin et al.

PHYSICS OF PLASMAS (2016)

Article Physics, Fluids & Plasmas

Hα diagnostic in a recombining plasma

U. Wenzel et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2016)

Article Materials Science, Multidisciplinary

Electron pressure balance in the SOL through the transition to detachment

A. G. McLean et al.

JOURNAL OF NUCLEAR MATERIALS (2015)

Article Materials Science, Multidisciplinary

The new SOLPS-ITER code package

S. Wiesen et al.

JOURNAL OF NUCLEAR MATERIALS (2015)

Article Materials Science, Multidisciplinary

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

S. I. Krasheninnikov et al.

JOURNAL OF NUCLEAR MATERIALS (2015)

Article Physics, Fluids & Plasmas

Inferring divertor plasma properties from hydrogen Balmer and Paschen series spectroscopy in JET-ILW

B. A. Lomanowski et al.

NUCLEAR FUSION (2015)

Article Materials Science, Multidisciplinary

Self-consistent modeling of X-point MARFE and divertor detachment

Vladislav Kotov et al.

JOURNAL OF NUCLEAR MATERIALS (2013)

Article Physics, Fluids & Plasmas

Formation of a natural X-point multifaceted asymmetric radiation from the edge in numerical simulations of divertor plasmas

V. Kotov et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2012)

Article Nuclear Science & Technology

Radiative power loading in the ITER divertor

C. Guillemaut et al.

FUSION ENGINEERING AND DESIGN (2011)

Article Nuclear Science & Technology

Finalizing the ITER divertor design: The key role of SOLPS modeling

A. S. Kukushkin et al.

FUSION ENGINEERING AND DESIGN (2011)

Article Physics, Fluids & Plasmas

Frequency-fluctuation model applied to Stark-Zeeman spectral line shapes in plasmas

S. Ferri et al.

PHYSICAL REVIEW E (2011)

Article Materials Science, Multidisciplinary

A parameterization of the Lyman α and Lyman β line shapes for radiation transport simulations in divertor plasmas

J. Rosato et al.

JOURNAL OF NUCLEAR MATERIALS (2009)

Article Materials Science, Multidisciplinary

Comparison of kinetic and fluid neutral models for attached and detached state

M. Furubayashi et al.

JOURNAL OF NUCLEAR MATERIALS (2009)

Article Physics, Fluids & Plasmas

Stark broadening of hydrogen lines in low-density magnetized plasmas

J. Rosato et al.

PHYSICAL REVIEW E (2009)

Article Physics, Fluids & Plasmas

Super-X divertors and high power density fusion devices

P. M. Valanju et al.

PHYSICS OF PLASMAS (2009)

Article Physics, Fluids & Plasmas

Line shape modeling for radiation transport investigations in magnetic fusion plasmas

J. Rosato et al.

HIGH ENERGY DENSITY PHYSICS (2009)

Article Physics, Fluids & Plasmas

0-D modeling of fast radiative shutdown of tokamak discharges following massive gas injection

E. M. Hollmann et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2008)

Article Optics

An analytical model for the Ly α redistribution function in conditions of tokamak edge plasmas

J. Rosato et al.

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS (2008)

Article Physics, Fluids & Plasmas

Numerical modelling of high density JET divertor plasma with the SOLPS4.2 (B2-EIRENE) code

V. Kotov et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2008)

Article Physics, Fluids & Plasmas

Influence of plasma opacity on current decay after disruptions in tokamaks

V. E. Lukash et al.

NUCLEAR FUSION (2007)

Review Physics, Fluids & Plasmas

Chapter 4: Power and particle control

A. Loarte et al.

NUCLEAR FUSION (2007)

Article Physics, Fluids & Plasmas

Spectroscopic measurement of atomic and molecular deuterium fluxes in the DIII-D plasma edge

E. M. Hollmann et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2006)

Article Physics, Fluids & Plasmas

Radiation absorption effects in B2-EIRENE divertor modelling

V. Kotov et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2006)

Article Materials Science, Multidisciplinary

OSM-EIRENE modeling of neutral pressures in the Alcator C-Mod divertor

S Lisgo et al.

JOURNAL OF NUCLEAR MATERIALS (2005)

Article Nuclear Science & Technology

The EIRENE and B2-EIRENE codes

D Reiter et al.

FUSION SCIENCE AND TECHNOLOGY (2005)

Article Physics, Fluids & Plasmas

Ionization-recombination processes and ablation cloud structure for a carbon pellet

DK Morozov et al.

NUCLEAR FUSION (2004)

Letter Physics, Fluids & Plasmas

Flux dependence of carbon chemical erosion by deuterium ions

J Roth et al.

NUCLEAR FUSION (2004)

Article Physics, Fluids & Plasmas

Incorporating line radiation effects into edge plasma codes

HA Scott et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2004)

Article Physics, Fluids & Plasmas

Effect of hydrogen line radiation on the divertor target plate incident heat flux

ML Adams et al.

CONTRIBUTIONS TO PLASMA PHYSICS (2004)

Article Physics, Fluids & Plasmas

Scaling laws for edge plasma parameters in ITER from two-dimensional edge modelling

AS Kukushkin et al.

NUCLEAR FUSION (2003)

Article Materials Science, Multidisciplinary

Radiation transfer in dense edge plasmas and divertors: experimental and recent computational results

D Reiter et al.

JOURNAL OF NUCLEAR MATERIALS (2003)

Article Physics, Fluids & Plasmas

Towards radiation transport modelling in divertors with the EIRENE code

D Reiter et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2002)

Article Physics, Multidisciplinary

Collisional radiative kinetics of molecular assisted recombination in edge plasmas

AY Pigarov

PHYSICA SCRIPTA (2002)

Article Optics

Cretin - a radiative transfer capability for laboratory plasmas

HA Scott

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER (2001)

Article Physics, Multidisciplinary

The influence of opacity on hydrogen excited-state population and applications to low-temperature plasmas

K Behringer et al.

NEW JOURNAL OF PHYSICS (2000)