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.
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Showing 1 to 8 of 8 for “"fast ignition"”.
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Electron Generations and Transportation in Fast Ignition Experiments
… generation and transportation of hot electron in fast ignition experiments. A brief review of the background and the theory of inertial confinement fusion process are discussed. This thesis explains different schemes of fast ignition alongside the various relevant electron energy spectrum …
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Relativistic electron beam transport for fast ignition relevant scenarios
A crucial issue surrounding the feasibility of fast ignition, an alternative inertial confinement fusion scheme, is the ability to efficiently couple energy from an incident short-pulse laser to a high-density, pre-compressed fuel core. Energy transfer will involve the generation and transport of a …
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Effects of Laser Frequency and Multiple Beams on Hot Electron Generation in Fast Ignition
… solid density with ultra-intense lasers. In the fast ignition (FI) scheme, a picosecond petawatt laser pulse is used to deposit ∼10 kJ of energy in ∼10 ps into a small hot-spot at the periphery of the compressed core, igniting a fusion burn wave. FI promises a much higher energy gain over …
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Fast-ion spectrometry of ICF implosions and laser-foil experiments at the omega and MTW laser facilities
Fast ions generated from laser-plasma interactions (LPI) have been used to study inertial confinement fusion (ICF) implosions and laser-foil interactions. LPI, which vary in nature depending on the wavelength and intensity of the driver, generate hot electrons with temperatures ranging from tens to …
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Spectrum and conversion efficiency measurements of suprathermal electrons from relativistic laser plasma interactions
Fast Ignition is an alternative scheme for Inertial Confinement Fusion (ICF) that uses a petawatt laser to ignite a hot spot in precompressed fuel. The laser delivers its energy into relativistic electrons at the critical surface of the blowoff plasma. These electrons must propagate to the fuel …
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Computational study of hot electron generation and energy transport in intense laser produced hot dense matter
… mass target experiments. Further, pertinent to fast ignition, laser accelerated fast electron diver- gence and transport in the experiments using warm dense matter (low temperature plasma) is characterized and explained.
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Self-generated magnetic fields in intense laser-solid interactions relevant to relativistic plasma astrophysics
… material resistivity-temperature profile affects fast electron transport via self-generated magnetic fields. The degree of lattice order in the material strongly affects electrical resistivity at low temperatures. By considering resistivity-temperature profiles intermediate to those of ordered and …
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Increased Proton Energies - Above the ~ 60 MeV Empirical Barrier, from High-Contrast High-Intensity Short-Pulse Laser-Interactions with Micro-Cone Targets
… oncology, and inertial confinement fusion with fast ignition. Several approaches have been proposed to maximize the energy and/or the conversion efficiency of the ion beams: instead of using regular size flat-foil targets (i.e. ~ 10 µm thickness, ~ 2x2 mm^2 lateral dimensions), one can use …