A5073654990- Nuclear reactor physics and engineering
- Magnetic confinement fusion research
- Fusion materials and technologies
- Nuclear Materials and Properties
- Particle accelerators and beam dynamics
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Advanced Thermodynamic Systems and Engines
- Nuclear Physics and Applications
- Spacecraft and Cryogenic Technologies
- Laser-Plasma Interactions and Diagnostics
- Superconducting Materials and Applications
- Ionosphere and magnetosphere dynamics
- Heat transfer and supercritical fluids
- Nuclear materials and radiation effects
- Nuclear Engineering Thermal-Hydraulics
- Rocket and propulsion systems research
- Risk and Safety Analysis
- Electromagnetic Launch and Propulsion Technology
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Plasma Diagnostics and Applications
- Advanced Data Processing Techniques
- Solar and Space Plasma Dynamics
- Phase Equilibria and Thermodynamics
- Subcritical and Supercritical Water Processes
Oak Ridge National Laboratory
2012-2021
Institute of Flight
2015
National Technical Information Service
2011-2012
Office of Scientific and Technical Information
2011-2012
Sandia National Laboratories
2012
Orano (United States)
2007
Technology Service Corporation (United States)
2005
University of Tennessee at Knoxville
1992-2003
Princeton Plasma Physics Laboratory
1994-1995
Princeton University
1994-1995
Plasma fuelling with pellet injection, pacing of edge localized modes (ELMs) by small frequent pellets and disruption mitigation gas jets or injected solid material are some the most important technological capabilities needed for successful operation ITER. Tools being developed at Oak Ridge National Laboratory that can be employed on ITER to provide necessary core ELMs disruptions. Here we present progress development technology reliable high throughput inner wall fuelling, ELM frequency...
The contents are described of an international pellet ablation database (IPADBASE) that has been assembled to enable studies theories used describe the physics ablating fuel in a tokamak plasma. represents effort assemble data from several tokamaks different magnetic configurations and auxiliary heating methods. In initial configuration, JET, Tore Supra, DIII-D, FTU, TFTR, ASDEX Upgrade, JIPP T-IIU, RTP T-10 have included. contains details measurements deuterium hydrogen ablation, including...
Liquid-fueled nuclear reactors, particularly molten salt reactors (MSRs), have recently gained significant interest in the advanced reactor community. As with all modeling and simulation are critical to design licensing will be required for MSR deployment. However, there gaps existing capabilities MSRs, unique challenges of liquid-fueled systems (e.g., fission product transport). Furthermore, designers require near-term tools that readily modifiable perform analysis, including ability extend...
Shattered pellet injection (SPI) has been selected as the baseline technology for disruption mitigation (DM) system ITER. Typical SPI utilizes cryogenic cooling to desublimate low pressure (<100 mbar) gases onto a cold zone within pipe gun barrel, forming cylindrical pellet. Pellets are dislodged from barrel and accelerated using either gas driven mechanical punch or high-pressure light-gas delivered by fast-opening valve. developed at Oak Ridge National Laboratory is currently deployed...
Existing development tools for early stage design and scoping of energy systems are often time consuming to use, proprietary, do not contain the necessary function model complete (i.e., controls, primary, secondary systems) in a common platform. The Modelica programming language based TRANSFORM tool (1) provides standardized, simulation environment power plants), (2) library baseline component modules be assembled into full plant models using available geometry, design, thermal-hydraulic...
An assessment of advanced reactor technology options was conducted to provide a sound comparative technical context for future decisions by the U.S. Department Energy (DOE) concerning these technologies. Strategic objectives were established that span wide variety important missions, and needs identified based on recent DOE international studies. A broad team stakeholders from industry, academia, government assembled develop comprehensive set goals, criteria, metrics evaluate irradiation...
A twin-screw extruder for the ITER pellet injection system is under development at Oak Ridge National Laboratory. The will provide a stream of solid hydrogen isotopes to secondary section, where pellets are cut and accelerated with single-stage gas gun into plasma. one-fifth scale prototype has been built produce continuous deuterium extrusion.Deuterium precooled liquefied before being introduced extruder. precooler consists copper vessel containing liquid nitrogen surrounded by filled coil....
Routine tritium operation in TFTR has permitted investigations of alpha particle physics parameter ranges resembling those a reactor core. ICRF wave DT plasma and the influence isotopic mass on supershot confinement have also been studied. Continued progress made optimizing fusion power production TFTR, using extended machine capability Li wall conditioning. Performance is currently limited by MHD stability. A new reversed magnetic shear regime being investigated with reduced core transport...
Recent experiments in the Advanced Toroidal Facility (ATF) torsatron [Plasma Physics and Controlled Nuclear Fusion Research 1990 (IAEA, Vienna, press)] have emphasized role of magnetic configuration control transport studies. Long-pulse plasma operation up to 20 sec has been achieved with electron cyclotron heating (ECH). With neutral beam injection (NBI) power ≥1 MW, global energy confinement times 30 msec obtained line-average densities 1.3×1020 m−3. The operational space ATF are roughly...