Investigation of Laser-driven Particle Acceleration for the Development of Tunable Ion Sources for Applications in High Energy Density Science

Investigation of Laser-driven Particle Acceleration for the Development of Tunable Ion Sources for Applications in High Energy Density Science
Author: Raspberry Simpson
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Total Pages: 0
Release: 2022
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Since the innovation of chirped pulse amplification by Donna Strickland and Gerard Morou in 1985, laser technology has evolved such that we can create short pulses of light (10−15 − 10−12 seconds) with high peak powers (1015 Watts) in small, focused spots (âˆĵa few microns). A prolific area of research that has emerged over the last two decades is the use of these high-intensity lasers to drive particle beams. Possible applications of these particle sources include isotope production for medical applications, proton cancer therapy, and fusion energy schemes. This thesis focuses on laser-driven proton acceleration and adds to the existing foundation of work in the area by investigating new empirical relationships, conducting new measurements of the accelerating electric field responsible for laser-driven proton acceleration, and developing a new data analysis methodology using machine learning. This work first examines laser-driven proton acceleration in the multi-picosecond regime (>1ps) at laser intensities of 1017 - 1019 W/cm2. This is motivated by recent results on laser platforms like the National Ignition Facility-Advanced Radiographic Capability laser and the OMEGA-Extended Performance laser, which have demonstrated enhanced accelerated proton energies when compared to established scaling laws. A detailed scaling study was performed on the Titan laser, which provided the basis for a new analytical scaling presented in this thesis. In addition, high-repetition-rate (HRR) lasers that can operate at 1 Hz or faster are now coming online around the world, opening a myriad of opportunities for accelerating the rate of learning on laser-driven particle experiments. To unlock these applications, HRR diagnostics combined with real-time analysis tools must be developed to process experimental measurements and outputs at HRR. Towards this goal, this thes is presents a novel automated data analysis framework based on machine learning and proposes a new methodology based on representation learning to integrate heterogeneous data constrain parameters that are not directly measurable. Taken together, these thrusts enable a new preliminary framework for enhanced analysis of complex HRR experiments and a foundational step towards realizing the goal of tunable laser-driven particle sources.


Investigation of Laser-driven Particle Acceleration for the Development of Tunable Ion Sources for Applications in High Energy Density Science
Language: en
Pages: 0
Authors: Raspberry Simpson
Categories:
Type: BOOK - Published: 2022 - Publisher:

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Since the innovation of chirped pulse amplification by Donna Strickland and Gerard Morou in 1985, laser technology has evolved such that we can create short pul
Frontiers in High Energy Density Physics
Language: en
Pages: 177
Authors: National Research Council
Categories: Science
Type: BOOK - Published: 2003-05-11 - Publisher: National Academies Press

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Recent scientific and technical advances have made it possible to create matter in the laboratory under conditions relevant to astrophysical systems such as sup
Scientific and Technical Aerospace Reports
Language: en
Pages: 568
Authors:
Categories: Aeronautics
Type: BOOK - Published: 1994 - Publisher:

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Laser-Plasma Interactions
Language: en
Pages: 454
Authors: Dino A. Jaroszynski
Categories: Science
Type: BOOK - Published: 2009-03-27 - Publisher: CRC Press

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A Solid Compendium of Advanced Diagnostic and Simulation ToolsExploring the most exciting and topical areas in this field, Laser-Plasma Interactions focuses on
Pulsed Laser Deposition of Thin Films
Language: en
Pages: 0
Authors: Douglas B. Chrisey
Categories: Technology & Engineering
Type: BOOK - Published: 1994-06-21 - Publisher: Wiley-Interscience

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A comprehensive overview of what is required to set up and begin research in this newly developing technology and understand the basics of the process. Internat