High voltage RF systems are used to accelerate proton beams for nuclear physics experiments. The acceleration process shapes the proton beam into a train of narrow pulses with the same period as the RF. This bunched beam structure is used to separate and identify secondary particles that are produced when the proton beam is directed at a "target". An RF controller for a system that separates secondary particles was built. Control of high power RF cavities that operate near resonance is discussed. The emphasis is on developing a control model for resonant systems and building a control system based on hardware and software modules that can be easily configured for different RF systems. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

The object of this investigation was to determine the effect of acceleration on the drag of spheres as it differs from the steady state case. Steady state drag applies to the force acting on a single sphere moving at constant velocity through an infinite, continuous, incompressible, turbulence free fluid. Extensive experimentation has quite thoroughly documented the steady state drag characteristics of spheres. A dimensionless parameter associated with the drag force is sometimes used to correlate drag characteristics.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE / Vita. / Bibliography: leaves 307-312. / by Peter Parr Mongeau. / Ph.D.

Lau, Yuk Yeung = 重離子核聚變驅動設備的最終壓縮離子束線系統 / 劉鈺暘. / "November 2011." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2012. / Includes bibliographical references (p. 99-101). / Abstracts in English and Chinese. / Lau, Yuk Yeung = Zhong li zi he ju bian qu dong she bei de zui zhong ya suo li zi shu xian xi tong / Liu Yuyang. / Abstract --- p.i / 概要 --- p.iii / Acknowledgements --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Background --- p.5 / Chapter 2.1 --- Nuclear fusion --- p.5 / Chapter 2.1.1 --- Nuclear fusion as an energy source --- p.5 / Chapter 2.1.2 --- Lawson criterion --- p.7 / Chapter 2.1.3 --- Confinement method --- p.8 / Chapter 2.2 --- Inertial confinement fusion --- p.11 / Chapter 2.2.1 --- Driving beams --- p.11 / Chapter 2.2.2 --- Reactor chamber --- p.14 / Chapter 2.2.3 --- Ignition target --- p.14 / Chapter 2.3 --- Heavy ion inertial confinement fusion --- p.16 / Chapter 2.3.1 --- Beam source and accelerator system --- p.18 / Chapter 2.3.2 --- Drift compression section --- p.20 / Chapter 2.4 --- Beam dynamics --- p.23 / Chapter 2.4.1 --- Transverse dynamics --- p.24 / Chapter 2.4.2 --- Longitudinal dynamics --- p.26 / Chapter 2.4.3 --- Emittance --- p.27 / Chapter 2.5 --- Simulation codes --- p.28 / Chapter 2.5.1 --- Particle in cell simulation --- p.28 / Chapter 2.5.2 --- WARP code --- p.29 / Chapter 3 --- Drift compression beamline system for heavy ion fusion drivers --- p.31 / Chapter 3.1 --- Beam requirements for target implosion in HIF driver --- p.31 / Chapter 3.2 --- Drift compression beamline configuration --- p.33 / Chapter 3.3 --- Simulation example --- p.39 / Chapter 3.4 --- Minimization of centroid offset with bend strategies --- p.42 / Chapter 3.5 --- Neutralized drift section and final focusing --- p.50 / Chapter 3.6 --- "Final pulse length, spot size and emittance" --- p.52 / Chapter 4 --- Longitudinal emittance growth due to non-linear space charge effects --- p.61 / Chapter 4.1 --- Longitudinal emittance growth in the linear regime - Simulation results --- p.62 / Chapter 4.2 --- Longitudinal emittance growth in the linear regime - analytical results --- p.67 / Chapter 4.2.1 --- Beam with uniform radius --- p.68 / Chapter 4.2.2 --- Beam with uniform density --- p.73 / Chapter 4.2.3 --- Comparison with simulations --- p.76 / Chapter 4.2.4 --- Extension to more general beams --- p.78 / Chapter 4.3 --- Longitudinal emittance evolution in the nonlinear regime --- p.79 / Chapter 4.4 --- Target pulse length minimization --- p.86 / Chapter 4.4.1 --- Optimization of drift compression beamline and beam parameters --- p.86 / Chapter 4.4.2 --- Phase space correction with initial voltage waveform tailoring --- p.90 / Chapter 4.5 --- Coupling of Longitudinal and Transverse Emittances --- p.91 / Chapter 5 --- Summary --- p.95 / Bibliography --- p.99

Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 186-203). Also available via the Internet

Thesis (Ph. D.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on Jan. 5, 2010). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Physics, Department of Physics, University of Alberta." Includes bibliographical references.

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