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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"Inertial Fusion"”.
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Digital Video Stabilization with Inertial Fusion
… a digital stabilization method that incorporates inertial fusion with a Kalman filter. The camera motion is derived visually by tracking SIFT features in the video feed and fitting them to an affine model. The digital motion is fused with a 3 axis rotational motion measured by an inertial …
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Investigating temperature distributions and thermal conduction effects in laser-heated plasmas relevant to Magnetized Liner Inertial Fusion
… implosion is a crucial step in Magnetized Liner Inertial Fusion (MagLIF). Experiments investigating this stage have been performed at Sandia National Laboratories. In these experiments, deuterium fuel within a cylindrical pipe, or liner, was heated using 527 nm laser light from the Z Beamlet …
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Using fusion-product spectroscopy to study inertial fusion implosions, stopping power, and astrophysical nucleosynthesis at OMEGA and the NIF
… energetic charged-particle products from fusion reactions occurring in plasmas, nuclear diagnostics can be used to study the properties of the burning plasma, as a probe of the plasma, or of the fundamental fusion reaction physics. In this thesis, fusion product spectroscopy is used to …
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Development and use of advanced nuclear diagnostics and neural networks to diagnose 3D morphology and power balance in inertial fusion implosions at OMEGA and NIF
Inertial confinement fusion (ICF) is one of several ways to perform nuclear fusion in the laboratory, and is thus appealing as a potential future energy source. Achieving high gain at ICF facilities like the National Ignition Facility (NIF) and OMEGA requires new ways of measuring implosion …
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Magnetohydrodynamic Simulations of Fast Instability Development in Pulsed-Power--Driven Explosions and Implosions of Electrical Conductors
Recent concepts for controlled magneto-inertial fusion (MIF), such as magnetized liner inertial fusion (MagLIF), have suffered from magnetohydrodynamic (MHD) instabilities that lead to degradations in fusion yield. High levels of azimuthally-correlated MHD instability structures have been observed …
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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 …
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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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Extreme ultraviolet probing of laser ablation
… instability in a regime relevant to inertial fusion energy and, in support of experimental effort, to test the feasibility of methods for measurement of iron opacity. Simulations of EUV radiography using the POLLUX code show how the presence of warm, dense material leads to strong …
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Direct Visual and Inertial Odometry for Monocular Mobile Platforms
Nowadays visual and inertial information is readily available from small mobile platforms, such as quadcopters. However, due to the limitation of onboard resource and capability, it is still a challenge to developing localisation and mapping estimation algorithms for small size mobile platforms. …
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Direct Ion-Temperature Measurements Using High-Resolution Inelastic X-ray Scattering
… laboratory astrophysics, materials science, and inertial fusion energy research. A reliance on inferred ion temperatures has led to disagreements across many thermodynamic processes. For example, within the field of electron-ion equilibration, indirect temperature determination has produced more …
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Using fusion-product spectroscopy to diagnose inertial confinement fusion implosions and study stopping power on OMEGA, the NIF, and Z
… related projects that use the spectroscopy of fusion products to diagnose areal densities in Inertial Confinement Fusion (ICF) implosions or study stopping power to better understand the areal density requirements of said implosions. The first project at the Z Facilty regards spectroscopy of …
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X-ray Radiative Signatures Influenced by Nonthermal Effects in High-Energy-Density Laboratory Plasmas of Mid-Atomic-Number Z-pinches
… and HED laboratory physics, including inertial confinement fusion (ICF), making it an inimitable tool for interdisciplinary science. Spectroscopic examination of plasma radiation can yield robust information on plasma conditions such as, temperature, density, size, and elemental …
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Fail-safe source-driven fission and fusion-fission hybrid reactor configurations
… (1k), is investigated for both fission and fusion-fission hybrid systems. Suchaconfiguration is thought to offer adesirable fail-safe reactor alternative in that the loss of the fission or the fusion neutron sourceswould automatically lead to a shut-down of the system into a stable …
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Experimental studies of the electrothermal instability using electrically thick, coated metal
… typically 35 - 70 μm. This insulating dielectric inertially tamps the hot, exploding metal, and keeps it at a larger density relative to uncoated metal at the same temperature. This prevents the metal from entering the liquid-vapor bi-phase region, which suppresses plasma formation, and enables …