A5038597180- Magnetic confinement fusion research
- Fusion materials and technologies
- Nuclear Materials and Properties
- Laser-Plasma Interactions and Diagnostics
- Ionosphere and magnetosphere dynamics
- Metallurgical Processes and Thermodynamics
- Ion-surface interactions and analysis
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Fluid Dynamics and Heat Transfer
Eindhoven University of Technology
2022-2025
Dutch Institute for Fundamental Energy Research
2022-2023
Four different tin-wetted, tungsten CPS (Capillary Porous System) targets where exposed to NBI pulses in the OLMAT High Heat flux (HHF) facility. They include two flexible ones placed on a TZM support (W meshes and W felt) compact (sintered disk 3D printed W). A comparative study was performed using fast-frame imaging camera an infrared pyrometer. Surface temperature increase homogeneity, particle ejection, damage overall behaviour were studied for each case. Sn drop/accumulation at lower...
One of the ways to extend lifetime divertor for DEMO could be replace solid tungsten plasma-facing components with liquid tin (Sn) confined in a capillary porous structure (CPS). Testing CPS plasma configuration is crucial development metal (LMD) understand how main affected. Only limited Sn concentration allowed core, due high radiative losses associated atomic number (50). Therefore, it necessary test small-scale LMD filled tokamak environment, which has not previously been done. In ASDEX...
Liquid metal based divertors could be a more robust alternative to solid tungsten design for DEMO. The liquid is confined in sponge-like layer, called capillary porous structure (CPS). It has been found previously that under certain conditions, many tin droplets eject from CPS when it brought into contact with hydrogen plasma. These would present contamination issue the plasma core. Stability analysis suggests droplet ejection can suppressed by reduction of pore size. To test this,...
Abstract The operation of the Optimization Liquid Metal Advanced Targets (OLMAT) facility began in April 2021 with scientific objective exposing liquid-metal plasma facing components (PFCs) to particle and power fluxes provided by one hydrogen neutral beam injectors TJ-II stellarator. system can deliver heat from 5 58 MW m −2 high energy particles (≤ 33 keV) up 10 22 2 s −1 (containing an ion fraction ≤ 33% some instances), pulsed 30–150 ms duration repetition rates min . These...
Using liquid metals confined in capillary porous structures (CPSs) as a plasma-facing component (PFC) could prolong the lifetime of divertor high heat flux area. However, atomic number tin (Sn) limits its acceptable fraction main plasma. Therefore, crucial step developing this concept is to test it tokamak environment, particularly diverted plasma region, e.g. ASDEX Upgrade (AUG). In paper, design module (LTM) explained, and testing device GLADIS before use AUG presented. The LTM was...