[HTML][HTML] Recent progress of plasma exhaust concepts and divertor designs for tokamak DEMO reactors

N Asakura, K Hoshino, S Kakudate, F Subba… - Nuclear Materials and …, 2023 - Elsevier
The power exhaust concept and an appropriate divertor design are common critical issues
for tokamak DEMO design activities which have been carried out in Europe, Japan, China …

Japan's efforts to develop the concept of JA DEMO during the past decade

K Tobita, R Hiwatari, Y Sakamoto… - Fusion Science and …, 2019 - Taylor & Francis
This paper summarizes the evolution of Japanese DEMO design studies in a retrospective
manner by highlighting efforts to resolve critical design issues on DEMO. Japan is currently …

Developments towards an ELM-free pedestal radiative cooling scenario using noble gas seeding in ASDEX Upgrade

A Kallenbach, M Bernert, P David, MG Dunne… - Nuclear …, 2020 - iopscience.iop.org
Integrated edge-localized-mode (ELM)-free or small ELM scenarios for the demonstration
fusion power plant (DEMO) are investigated in ASDEX Upgrade using argon seeding for …

Integrated RMP-based ELM-crash-control process for plasma performance enhancement during ELM crash suppression in KSTAR

M Kim, G Shin, J Lee, WH Ko, H Han, SH Hahn… - Nuclear …, 2023 - iopscience.iop.org
Abstract The integrated Resonant Magnetic Perturbation (RMP)-based Edge-Localized
Mode (ELM)-crash-control process aims to enhance the plasma performance during the …

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

N Asakura, K Hoshino, S Kakudate, F Subba… - Nuclear …, 2021 - iopscience.iop.org
Abstract Concepts of the power exhaust and divertor design have been developed, with a
high priority in the pre-conceptual design phase of the Japan–Europe broader approach …

[HTML][HTML] Neutral pressure and separatrix density related models for seed impurity divertor radiation in ASDEX Upgrade

A Kallenbach, M Bernert, R Dux, T Eich… - Nuclear Materials and …, 2019 - Elsevier
Analytical expressions for the divertor radiation around the onset of detachment based on
the divertor neutral pressure and the upstream separatrix density are tested against …

Three-dimensional impurity transport modeling of neon-seeded and nitrogen-seeded LHD plasmas

G Kawamura, H Tanaka, K Mukai… - Plasma Physics and …, 2018 - iopscience.iop.org
Modeling of impurity-seeded plasma in Large Helical Device is presented for the first time by
using the three-dimensional transport code EMC3-EIRENE. High and low recycling …

Overview of the DEMO conceptual design activity in Japan

K Tobita, R Hiwatari, H Utoh, Y Miyoshi… - Fusion Engineering and …, 2018 - Elsevier
The requirements for Japanese DEMO are to demonstrate (1) steady and stable electrical
power generation,(2) plant availability on a level relevant for commercialization, and (3) self …

Turbulence spreading into an edge stochastic magnetic layer induced by magnetic fluctuation and its impact on divertor heat load

M Kobayashi, K Tanaka, K Ida, Y Hayashi, Y Takemura… - Physical review …, 2022 - APS
Turbulence spreading into the edge stochastic magnetic layer induced by magnetic
fluctuation is observed at the sharp boundary region in the large helical device. The density …

Modelling of tungsten impurity edge transport and screening for different divertor conditions in EAST

H Wang, G Xu, R Ding, X Liu, H Si, Q Zhang… - Nuclear …, 2022 - iopscience.iop.org
Tungsten (W) transport and screening in the edge plasma are investigated for EAST high
dissipative divertor conditions. By combining the 1D impurity fluid model (1DImpFM) and the …