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Articles 1 - 5 of 5
Full-Text Articles in Nuclear Engineering
Response Of Plasma Facing Components In Tokamaks Due To Intense Energy Deposition Using Particle-In-Cell(Pic) Methods, Filippo Genco
Response Of Plasma Facing Components In Tokamaks Due To Intense Energy Deposition Using Particle-In-Cell(Pic) Methods, Filippo Genco
Open Access Dissertations
Damage to plasma-facing components (PFC) due to various plasma instabilities is still a major concern for the successful development of fusion energy and represents a significant research obstacle in the community. It is of great importance to fully understand the behavior and lifetime expectancy of PFC under both low energy cycles during normal events and highly energetic events as disruptions, Edge-Localized Modes (ELM), Vertical Displacement Events (VDE), and Run-away electron (RE). The consequences of these high energetic dumps with energy fluxes ranging from 10 MJ/m2 up to 200 MJ/m2 applied in very short periods (0.1 to 5 ms) can be …
A Compact, Convective Flow Nak Test Loop For Material Exposure Contained In An Argon Atmosphere, David Joseph Rowekamp
A Compact, Convective Flow Nak Test Loop For Material Exposure Contained In An Argon Atmosphere, David Joseph Rowekamp
Masters Theses
The objective of this research project was to construct a compact NaK loop to test weld configurations for application in a space reactor. The NaK loop fits inside of standard welding glove-box, and holds 64 weld specimens and a diffusion bonded tube-plate assembly. The NaK loop has a furnace which operates at a 650 degrees Celsius. It contains two independent and by-passable cold traps to maintain low oxygen levels in the NaK. The loop also contains a coil heat exchanger to cool the NaK. The loop operates with purely with convective flow, which is driven by the temperature differential between …
Simulations Of Ti-Y-O Nanoclusters In Ferritic Alloys, Natalie Browning Camilli
Simulations Of Ti-Y-O Nanoclusters In Ferritic Alloys, Natalie Browning Camilli
Masters Theses
Nanostructured ferritic alloys possess high strength and resistance to radiation effects due to the presence of nanoprecipitates. Though nanostructured ferritic alloys have desirable mechanical properties, the exact composition and structure of the nanoprecipitates is unknown; thus, atomistic simulations involving the formation of nanoclusters give insight as to their structure. This thesis focuses on the structure, formation and radiation stability of Ti-Y-O [titanium-yttrium-oxygen] nanoclusters in iron. The activation energies for diffusion and the diffusion coefficients of oxygen interstitial atoms in iron are determined. The binding energies of various combinations of oxygen interstitial atoms and iron vacancies are also tabulated. Thermodynamic formation …
Mehanical Characterization Of Ion-Iradiated Silicon Carbide By Nanoindentation, Alex Hackett, Kurt Johanns, Haizhou Xue, Yanwen Zhang, Erik Herbert, George Pharr
Mehanical Characterization Of Ion-Iradiated Silicon Carbide By Nanoindentation, Alex Hackett, Kurt Johanns, Haizhou Xue, Yanwen Zhang, Erik Herbert, George Pharr
EURēCA: Exhibition of Undergraduate Research and Creative Achievement
Tests are done on various types of silicon carbide in order to analyze mechanical properties and radiation resistance.
The Effect Of Gamma Radiation On Fibre Bragg Grating Sensors When Used As Radiation Dosimeters, Des Baccini
The Effect Of Gamma Radiation On Fibre Bragg Grating Sensors When Used As Radiation Dosimeters, Des Baccini
Theses : Honours
The effects of Gamma Radiation on Fibre Bragg Gratings (FBGs), when used as a radiation dosimeter, was proposed. The focus of this study centred on the FBG performance, and in particular the Bragg Wavelength Shift (BWS) whilst being exposed to ionizing radiation. Current research suggests that certain types of fibres manufactured by varying methods produce different results. The different responses to exposure from gamma irradiation between Germanium (Ge) doped optical fibres, with and without Hydrogen loading, along with the standard SMF-28 fibre with Hydrogen, were used and results noted and compared to previous work. The FBG’s in each fibre were …