Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 54 for “"fusion devices"”.
-
Enabling the simulation of helium transport in lithium for fusion devices
Nuclear fusion is a potential source of abundant, carbon-free energy. However, creating a nuclear fusion device with the ability to efficiently produce energy is a challenge to modern engineering. The tokamak is a device that has been designed to produce power through nuclear fusion. Finding the …
-
Experimental Erosion Study of Lithium-On-Carbon Surfaces for Fusion Devices
Made available in DSpace on 2017-07-06T18:55:56Z (GMT). No. of bitstreams: 3 Racic_Marin_Z_MS.pdf: 1548205 bytes, checksum: d31513136d9968205cdeaa1221700e86 (MD5) Racic_Marin_Z_MS_ABS.pdf: 10694 bytes, checksum: 2cfebabd10663ef4d7f4388fb861ba8b (MD5) license.txt: 4813 bytes, checksum: …
-
Molecular Dynamics Simulations of Carbon /Hydrocarbon -Surface Interactions Relevant to Fusion Devices
*This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation). The CD requires the following system requirements: Internet Browser; Adobe Acrobat; Windows MediaPlayer or RealPlayer.
-
Advancement of liquid lithium plasma-facing components for next-generation fusion devices
Fusion power generation is clearly an attractive solution to the problem of global energy production. It produces no greenhouse gases, is incredibly energy dense and could offer access to limitless energy. Generating and controlling the extreme conditions required to achieve fusion however, poses …
-
Machine Learning and Deep Learning applications for the protection of nuclear fusion devices
… methods for the protection of nuclear fusion devices with reference to the Joint European Torus (JET) Tokamak and the Wendenstein 7-X (W7-X) Stellarator. JET is currently the world's largest operational Tokamak and the only one operated with the Deuterium-Tritium fuel, while W7-X is the …
-
Molecular Dynamics Modeling of Hydrogen in Liquid Lithium Surfaces Relevant to Fusion Devices
Made available in DSpace on 2017-07-06T18:55:56Z (GMT). No. of bitstreams: 3 Qiu_Huatan_MS.pdf: 1416575 bytes, checksum: 81b2e9f30cac4a12ee110d781fc2e4c8 (MD5) Qiu_Huatan_MS_ABS.pdf: 89094 bytes, checksum: 06c17a6a0ada187727cb205966c4b517 (MD5) license.txt: 4813 bytes, checksum: …
-
An Energy-Dependent Finite-Orbit Treatment for Plasma Buildup in Mirror Fusion Devices
… simulation of hot plasma buildup in mirror fusion devices and results from this model are pesented here. In a small, hot magnetically confined plasma, the ion orbit radius ((rho)(,i)) can be comparable to the plasma radius (R(,p)). In a mirror-confined plasma where (rho)(,i)/R(,p) > 1/25 …
-
Improved lifetimes and synchronization behavior in multi-grid inertial electrostatic confinement fusion devices
… mature nuclear concepts of solidcore fission and fusion Tokamaks do not satisfy the lightweight criteria due to massive radiators and magnets respectively. An attractive alternative is Inertial Electrostatic Confinement fusion. This extremely lightweight option has been studied extensively and to …
-
An in-situ accelerator-based diagnostic for plasma-material interactions science in magnetic fusion devices
Plasma-material interactions (PMI) in magnetic fusion devices such as fuel retention, material erosion and redeposition, and material mixing present significant scientific and engineering challenges, particularly for the next generation of devices that will move towards reactor-relevant conditions. …
-
Method to Determine Compressive Bending Performance in Static and Fatigue Loading for Pediatric Non-Fusion Devices
… procedures, spinal rods – known as pediatric non-fusion devices (i.e. growing rods) – are placed in the patients to allow for spinal growth. ASTM standards exist for fusion constructs. Growing-rod constructs place greater demands on the rods as no fusion is performed and the rods are continually …
-
Flow control and associated technologies to advance the application of TEMHD-driven liquid lithium in fusion devices
As the fusion research community trends toward building larger and hotter devices, evidence points to the fact that solid plasma facing components will not be able to endure the conditions without extensive damage. Plasma-materials interactions with these surfaces lead to material defects, impurity …
-
Characterization of Liquid Metal Free Surface Response to an Electromagnetic Impulse and Implications for Future Nuclear Fusion Devices
… for use as plasma facing components (PFCs) in fusion devices to mitigate heat loading, limit damage due to erosion, and possibly breed tritium. When used as electrodes, such as in z-pinch devices, PFCs are subject to large current and magnetic flux densities resulting in large Lorentz forces. …
-
Development of accelerator based spatially resolved ion beam analysis techniques for the study of plasma materials interactions in magnetic fusion devices
Plasma-material interactions (PMI) in magnetic fusion devices pose significant scientific and engineering challenges for the development of steady-state fusion power reactors. Understanding PMI is crucial for the develpment of magnetic fusion devices because fusion plasmas can significantly modify …
-
Measurements of Magnetic Compression and Melt of Electrically Thick Metals Driven by Lineal Current Densities Characteristic of Pulsed-Power-Driven Fusion Devices
… role in the stability and performance of fusion concepts such as magnetized liner inertial fusion (MagLIF). A host of diagnostics, such as high-speed imaging, PDV, and laser shadowgraphy, tracked the surface motion and instability growth on mm-diameter aluminum rods driven to megampere …
-
Modeling the Dynamics of Liquid Metal in Fusion Liquid Walls Using Maxwell-Navier-Stokes Equations
… the liquid metal wall's free surface in Z-pinch fusion devices. This research is conducted in the context of utilizing liquid metals as plasma-facing components in fusion reactors. In the Z-pinch fusion process, electric current travels through a plasma column and enters into a pool of liquid …
-
Messung und Analyse von neutroneninduzierten Aktivitäten in Materialien zukünftiger Kernfusionsreaktoren
… induced by neutrons in the materials of future fusion devices represents a central topic of safety- and environmental-related investigations. For the design and operation of future fusion devices, like the International Experimental Thermonuclear Reactor ITER or power plants like DEMO, the …
-
Accelerated atomistic prediction of structure, dynamics and material properties in molten salts
… reactors (FHRs), molten salt reactors (MSRs) and fusion devices have proposed to use molten salt coolants. However, there remain many uncertainties in the chemistry, dynamics and physicochemical properties of many salts, especially over the course of reactor operation, where impurities are …
-
Advancing radiative heat transfer modeling in high-temperature liquid-salts
… reactors (FHRs), molten salt reactors (MSRs), fusion devices, and concentrated solar power plants. The temperature distribution in the coolant salts can be affected by participating media radiative heat transfer, due to the high temperature operation and their semitransparent nature. …
-
Stable Alfven Wave Dynamo Action in the Reversed Field Pinch
… Alfven wave current-drive and plasma heating for fusion devices, as well as astrophysical and geophysical dynamo systems.
-
Investigation of Alfvén eigenmodes in Alcator C-Mod using active MHD spectroscopy
… the shear Alfvén continuum of toroidal magnetic fusion devices may be important for the confinement of energetic particles, particularly fusion-born alpha particles in burning plasma experiments. Interaction between these energetic particles and weakly damped toroidal Alfvén eigenmodes (TAE's) …
Page 1 of 3