A5073020176- Fusion materials and technologies
- Magnetic confinement fusion research
- Ion-surface interactions and analysis
- Plasma Diagnostics and Applications
- Nuclear Materials and Properties
- Metal and Thin Film Mechanics
- Superconducting Materials and Applications
- Nuclear reactor physics and engineering
- Laser-Plasma Interactions and Diagnostics
- Ionosphere and magnetosphere dynamics
- Metallurgical Processes and Thermodynamics
- Dust and Plasma Wave Phenomena
- Advanced Data Storage Technologies
- Surface Roughness and Optical Measurements
- Semiconductor materials and devices
- Laser-induced spectroscopy and plasma
- Analytical chemistry methods development
- Surface Modification and Superhydrophobicity
- Electrohydrodynamics and Fluid Dynamics
- SAS software applications and methods
- Cold Fusion and Nuclear Reactions
- GaN-based semiconductor devices and materials
- Advanced Materials Characterization Techniques
- Thermodynamic and Structural Properties of Metals and Alloys
- nanoparticles nucleation surface interactions
Tri Alpha Energy (United States)
2023-2025
University of Illinois Urbana-Champaign
2017-2024
Max Planck Society
2019
Max Planck Institute for Plasma Physics
2019
Ion-material interactions are of vital importance in industrial applications, the study and design nuclear fusion devices, engineering survivable spacecraft components, more.In particular, plasma-material typically dominated by ion-material interactions, including phenomena sputtering, reflection, implantation.These difficult to model analytically, many such models rely on empirical or semi-empirical formulas, as Yamamura sputtering yield formula (Y.Yamamura, 1982), Thomas reflection...
Abstract TAE Technologies’ fifth-generation fusion device, C-2W (also called ‘Norman’), is the world’s largest compact-toroid device and has made significant progress in field-reversed configuration (FRC) plasma performance. produces record breaking, macroscopically stable, high-temperature advanced beam-driven FRC plasmas, dominated by injected fast particles sustained steady state, which primarily limited neutral-beam (NB) pulse duration. The NB power supply system recently been upgraded...
In this manuscript we introduce a simulation tool-suite for predicting plasma-surface interactions (PSI), which aims to predict the evolution of plasma-facing surfaces that continually change due exposure fusion plasmas. A comprehensive description PSI involves wide range physical phenomena, include components (a) gas implantation and its dynamic below divertor surface; (b) erosion wall material; (c) transport re-deposition eroded impurities; (d) scrape-off layer plasma including fuel ions...
Abstract Terrestrial accelerator facilities can generate ion beams which enable the testing of resistance materials and thin film coatings to be used in space environment. In this work, a $$\hbox {TiO}_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mtext>TiO</mml:mtext> <mml:mn>2</mml:mn> </mml:msub> </mml:math> /Al bi-layer coating has been irradiated with {He}^+$$ <mml:msup> <mml:mtext>He</mml:mtext> <mml:mo>+</mml:mo> </mml:msup> beam at three different...
Abstract Binary Collision Approximation (BCA) codes for ion-material interactions, such as SRIM, Tridyn, F-TRIDYN, and SDtrimSP, have historically been limited to screened Coulomb potentials even at low energies due the difficulty in numerically solving Distance of Closest Approach (DOCA) problem attractive-repulsive potentials. Techniques direct n-body simulation or modifications Newton’s method are either prohibitively costly not guaranteed work all Advanced rootfinding techniques,...
Abstract We describe the results of a multi-scale, multi-physics modeling assessment SOLPS-ITER, hPIC2, RustBCA and Xolotl, in which five single-crystal tungsten (W) samples were placed reciprocating collector probe exposed to helium (He) plasma WEST fusion device. In our models, we considered pure (100 %) He plasma, as well one with oxygen (O) present (95% 5% O) corresponding impurity concentration estimated during C4 campaign WEST. Our SOLPS simulations approximately match experimental...
Abstract A Bayesian inference strategy has been used to estimate uncertain inputs global impurity transport code (GITR) modeling predictions of tungsten erosion and migration in the linear plasma device, PISCES-A. This allows quantification GITR output uncertainty based on uncertainties measured PISCES-A electron density temperature profiles ( n e , T ) as GITR. The technique applied for comparison dedicated experiments performed high (4 × 10 22 m −2 s −1 low (5 21 flux 250 eV He–plasma...
Abstract As part of the NASA Starlight collaboration, we look at implications impacts with interstellar medium (ISM) on a directed energy-driven relativistic spacecraft. The spacecraft experiences stream MeV/nucleon along forward edge primarily from hydrogen and helium nuclei. accumulation implanted slowly diffusing gas atoms in solids drives damage through meso-scale processes bubble formation, blistering, exfoliation. This results macroscopic changes to material properties and, cases...