Results 51 to 60 of about 249 (122)

Evaluation of ITER divertor shunts as a synthetic diagnostic for detachment control

Nuclear Fusion, 2023
Reliable diagnostics that measure the detached state of the ITER divertor plasma will be necessary to control heat flux to the divertor targets during steady state, burning plasma operation. This paper conducts an initial exploration into the feasibility
C.A. Orrico, T. Ravensbergen, R.A. Pitts, X. Bonnin, E. Kaveeva, J.S. Park, V. Rozhansky, I. Senichenkov, C. Watts, M. de Baar   +9 more
doaj   +1 more source

On the role of atomic momentum and molecules in self-consistent 1D scrape-off layer simulation of MAST-U, using DIV1D

Nuclear Fusion
In this paper, the 1D physics-based dynamic scrape-off-layer (SOL) model DIV1D is extended to include molecular interactions and the effects of finite atomic flow velocity parallel to the magnetic field lines.
S.P. Kobussen, G.L. Derks, E. Westerhof, D. Moulton, S. Wiesen, K. Verhaegh   +5 more
doaj   +1 more source

Error‐based grid adaptation methods for plasma edge simulations with SOLPS‐ITER

Contributions to Plasma Physics
AbstractOnly recently, plasma edge simulations up to the wall have been enabled with SOLPS‐ITER. This requires dedicated gridding techniques to reconcile grid alignment with the magnetic field and refinement toward the wall as grid quality is primordial to ensure fast and reliable convergence.
Vervloesem, Nathan, Dekeyser, Wouter, van den Kerkhof, Sander, Baelmans, Martine   +3 more
openaire   +2 more sources

SOLPS-ITER simulations of the ITER divertor with improved plasma-facing component geometry

Nuclear Materials and Energy
The ITER divertor design has been guided by SOLPS4.3 plasma boundary code simulations focused on baseline burning conditions at QDT = 10 which compose the majority of the existing ITER divertor scenario database.
A.A. Pshenov, X. Bonnin, R.A. Pitts
doaj   +1 more source

Deuterium retention in co-deposition with lithium in Magnum-PSI: experimental analysis and comparison with SOLPS-ITER

Nuclear Fusion
The vapor-box, a liquid metal design for the divertor, utilizes lithium recirculation through evaporation and condensation. Safety concerns arise from Li-D/T formation and co-deposition on vapor-box walls and the first wall, affecting tritium retention ...
M. Morbey, J. Gonzalez, W.M. Arnoldbik, B. Tyburska-Pueschel, T.W. Morgan   +4 more
doaj   +1 more source

Sensitivity analysis of plasma edge code parameters through algorithmic differentiation

Nuclear Materials and Energy, 2019
Anomalous radial transport coefficients, boundary conditions and reaction rates are among the main sources of uncertainty within plasma edge modeling. In principle, an analysis to determine the sensitivity of code results to changes in uncertain model ...
Stefano Carli, Maarten Blommaert, Wouter Dekeyser, Martine Baelmans   +3 more
doaj   +1 more source

Impact of ionization and transport on pedestal density structure in DIII-D and Alcator C-Mod

Nuclear Fusion
This paper investigates the role of ionization on the pedestal structure using both measurements and modeling for H-mode plasmas on DIII-D and Alcator C-Mod to enhance our ability to predict pedestal behavior in future pilot plants.
S. Mordijck, R.A. Chaban, R. Reksoatmodjo, J.J. Balbin-Arias, Y. Chuang, J. Loughran, J.W. Hughes, A.M. Rosenthal, M.A. Miller, T. Wilks, F.M. Laggner, T. Osborne   +11 more
doaj   +1 more source

Modelling of tungsten prompt redeposition at the inner wall of ITER during ramp-up

Nuclear Materials and Energy
The prompt redeposition of sputtered tungsten at the inner wall of ITER during current ramp-up has been simulated with the ERO code. Plasma parameters from SOLPS-ITER for a medium-density (with a peak electron density of 4E12 cm−3 at the inner wall) and ...
A. Kirschner, C. Baumann, S. Brezinsek, Ch. Linsmeier, R.A. Pitts, A.A. Pshenov, J. Romazanov   +6 more
doaj   +1 more source

Modeling study of divertor particle flow pattern and in-out plasma density asymmetry due to drifts with SOLPS and BOUT+. [PDF]

Sci Rep, 2023
Deng G, Yu C, Wang X, Feng W, Liu X, Yang H.   +5 more
europepmc   +1 more source

SOLPS-ITER simulations to study the impact of aspect ratio on edge fueling neutrals in tokamaks

Nuclear Materials and Energy
In this paper, we examine the role of the aspect ratio on the neutral penetration and poloidal distribution for fixed magnetic geometry and plasma profiles using SOLPS-ITER. We start from an H-mode discharge from MAST (Kirk et al., 2012), with its aspect
Yi-Cheng Chuang, Saskia Mordijck, Richard Fitzpatrick, Richard Reksoatmodjo   +3 more
doaj   +1 more source