Dust and powder in fusion plasmas: Recent developments in theory, modeling, and experiments

S Ratynskaia, A Bortolon, SI Krasheninnikov - Reviews of Modern Plasma …, 2022 - Springer
In this paper, we present a brief historic overview of the research on dust in fusion devices
with carbon plasma-facing components and then highlight the most recent developments in …

First measurements of p11B fusion in a magnetically confined plasma

RM Magee, K Ogawa, T Tajima, I Allfrey, H Gota… - nature …, 2023 - nature.com
Abstract Proton-boron (p11B) fusion is an attractive potential energy source but technically
challenging to implement. Developing techniques to realize its potential requires first …

Observation of a reduced-turbulence regime with boron powder injection in a stellarator

F Nespoli, S Masuzaki, K Tanaka, N Ashikawa… - Nature Physics, 2022 - nature.com
In state-of-the-art stellarators, turbulence is a major cause of the degradation of plasma
confinement. To maximize confinement, which eventually determines the amount of nuclear …

Suppression of edge localized modes with real-time boron injection using the tungsten divertor in EAST

Z Sun, A Diallo, R Maingi, YZ Qian, K Tritz… - Nuclear …, 2020 - iopscience.iop.org
We report an observation of robust suppression of edge-localized modes (ELMs) in the
Experimental Advanced Superconducting Tokamak (EAST), enabled by continuous boron …

Overview of recent results from the ST40 compact high-field spherical tokamak

SAM McNamara, A Alieva, MSA Tzanis, O Asunta… - Nuclear …, 2024 - iopscience.iop.org
ST40 is a compact, high-field (BT0≤ 2.1 T) spherical tokamak (ST) with a mission to expand
the physics and technology basis for the ST route to commercial fusion. The ST40 research …

Simultaneous reproduction of experimental profiles, fluxes, transport coefficients, and turbulence characteristics via nonlinear gyrokinetic profile predictions in a DIII-D …

NT Howard, P Rodriguez-Fernandez, C Holland… - Physics of …, 2024 - pubs.aip.org
Experimental conditions obtained on the DIII-D tokamak in the ITER Similar Shape (ISS)
have been compared extensively with nonlinear gyrokinetic simulation using the CGYRO …

Observations of wall conditioning by means of boron powder injection in DIII-D H-mode plasmas

A Bortolon, R Maingi, A Nagy, J Ren, JD Duran… - Nuclear …, 2020 - iopscience.iop.org
We report observations from the DIII-D tokamak indicating that boron (B) powder injection in
tokamak plasmas improves wall conditions similarly to glow discharge boronization (GDB) …

[HTML][HTML] Real-time wall conditioning by controlled injection of boron and boron nitride powder in full tungsten wall ASDEX Upgrade

A Bortolon, V Rohde, R Maingi, E Wolfrum… - Nuclear Materials and …, 2019 - Elsevier
In ASDEX Upgrade with full-tungsten wall, boronization is an important tool to control
tungsten sources and allow reliable operation at low collisionality. The duration of the …

[HTML][HTML] Characterization of injection and confinement improvement through impurity induced profile modifications on the Wendelstein 7-X stellarator

R Lunsford, C Killer, A Nagy, DA Gates, T Klinger… - Physics of …, 2021 - pubs.aip.org
Pulsed injections of boron carbide granules into Wendelstein 7-X stellarator (W7-X) plasmas
transiently increase the plasma stored energy and core ion temperatures above the …

Advances in the long-pulse steady-state high beta H-mode scenario with active controls of divertor heat and particle fluxes in EAST

BN Wan, XZ Gong, Y Liang, N Xiang, GS Xu… - Nuclear …, 2022 - iopscience.iop.org
Since the last IAEA-Fusion Energy Conference, the Experimental Advanced
Superconducting Tokamak (EAST) research program has been, in support of ITER and …