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Showing 1 to 18 of 18 for “"magnetic fusion"”.
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Methods for the analysis of low-Z plasma facing surfaces in magnetic fusion applications
… in the design and operating performance of magnetic fusion devices have been made in recent decades. While the optimization of reactor components and magnetic topologies have led to considerable improvements in plasma density, temperature, and confinement time, research also suggests that …
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Modelling and Control of Magnetic Fusion Plants Based on ARM CPU and STM32 MCU Platforms
… of systems that can be integrated into magnetic fusion plant controllers. These systems, usually referred to as control and data acquisition systems, supply the interface to all the instrumentation required for the nuclear fusion plant. At an extremely high level of description, control …
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Multi-fidelity machine learning methods for sputtering yield calculations relevant to magnetic fusion energy systems
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01
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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. …
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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 …
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Investigation of sub-meter shields for a low aspect ratio D-T Tokamak fusion reactor
A significant effort is being made by fusion researchers to minimize the total size of magnetic fusion devices on the path toward developing fusion energy. The spherical tokamak, which has a very low aspect ratio, is the most promising of the compact magnetic fusion reactor designs. This …
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Fusion-Product Energy Loss in Inertial Confinement Fusion Plasmas With Applications to Target Burns
Inertial confinement fusion has been proposed as a competitor to magnetic fusion in the drive towards energy production, but lags behind partly because of the limited knowledge of high-density plasmas. One area of uncertainty is the energy-loss rate of fusion products. This is due in part to the …
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The Velocity-Space Particle Loss in Field-Reversed Theta Pinches
… theta pinch (FRTP) is a compact device for magnetic fusion. It has attracted much attention in recent years since encouraging experimental results have been obtained. However, the definite causes for the observed particle loss rate and plasma rotation are not well known. In this work, we …
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Investigation of Alfvén eigenmodes in Alcator C-Mod using active MHD spectroscopy
… exist in 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 …
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A numerical investigation of collisionality and turbulent transport
… is fundamental to the design and performance of magnetic fusion projects.
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A Computational Study of A Lithium Deuteride Fueled Electrothermal Plasma Mass Accelerator
Future magnetic fusion reactors such as tokamaks will need innovative, fast, deep-fueling systems to inject frozen deuterium-tritium pellets at high speeds and high repetition rates into the hot plasma core. There have been several studies and concepts for pellet injectors generated, and different …
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Optimization of the thermal-hydraulic performance of the helium-cooled modular divertor with multiple jets
… key plasma-facing component of future commercial magnetic fusion energy (MFE) reactors that helps sustain fusion reactions by removing helium ash particles and impurities from the core plasma. The divertor target plates are therefore subject to high steady-state incident heat fluxes, expected to …
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Design of demountable toroidal field coils with REBCO superconductors for a fusion reactor
… could be a revolutionary development for magnetic fusion. REBCO has significantly better performance at high magnetic fields than traditional low temperature superconductors (LTS), and can be operated at a higher temperature than LTS for reduced thermodynamic cost of cooling. Use of REBCO …
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Quench dynamics and fiber optic quench detection of VIPER high temperature superconductor cable
… many high field magnet applications—such as magnetic fusion devices—to operate at superior current densities, temperatures, and fields compared to low temperature superconductor (LTS) based magnets. However, HTS introduces new challenges: slow quench propagation velocities (orders of …
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Experimental study of a high efficiency step-tunable MW gyrotron oscillator
… electron cyclotron heating and current drive in magnetic fusion devices. It is important that the gyrotron operates with high efficiency and provides a high quality output beam to minimize system size, maximize reliability and avoid additional losses in external systems. This thesis presents the …
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Numerical analysis of radio-frequency sheath-plasma interactions in the ion cyclotron range of frequencies
Electromagnetic plasma waves in the ion cyclotron range of frequencies (ICRF) are routinely used in magnetic fusion experiments to heat plasmas and drive currents. However, many experiments have revealed that wave energy losses in the plasma edge and at the wall are significant, and detected that …
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Low Temperature Solder Demountable Joints for Non-Insulated, High Temperature Superconducting Fusion Magnets
Every one to two years, an operating tokamak fusion reactor requires maintenance and replacement of the internal components due to neutron damage. Previous solutions involve sectioning, assembling, and disassembling these components using the ports in between the toroidal field coils. To improve …
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Design and Engineering of Advanced Fuel Fusion Reactor First Wall Systems
Made available in DSpace on 2017-07-06T18:55:42Z (GMT). No. of bitstreams: 2 Olson_Richard_E_MS.pdf: 36443626 bytes, checksum: 495d7b0e83529c3ec6c15310fe3ee2d7 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1979