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An Xipo = 低能电子能量损失谱中多重散射效应的修正 / 安西坡. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 55-56). / Text in English; abstracts in English and Chinese. / An Xipo = Di neng dian zi neng liang sun shi pu zhong duo zhong san she xiao ying de xiu zheng / An Xipo. / Abstract --- p.i / 摘要 --- p.ii / Acknowledgement --- p.iii / Table of contents --- p.iv / Chapter Chapter 1: --- Introduction --- p.1 / Chapter Chapter 2: --- Background / Chapter 2.1 --- Theory of electron scattering --- p.3 / Chapter 2.1.1 --- Elastic scattering --- p.3 / Chapter 2.1.2 --- Inelastic scattering --- p.4 / Chapter 2.1.2.1 --- The bethe theory --- p.5 / Chapter 2.1.2.2 --- The dielectric formulation --- p.6 / Chapter 2.1.3 --- Excitation of out-shell electrons --- p.6 / Chapter 2.1.3.1 --- Volume plasmon and its dispersion --- p.6 / Chapter 2.1.3.2 --- Single electron excitation --- p.8 / Chapter 2.2 --- Single and multiple scattering process --- p.8 / Chapter Chapter 3 --- Fourier transform based deconvolution method / Chapter 3.1 --- Theory --- p.10 / Chapter 3.1.1 --- Derivation of the single scattering distribution (SSD) --- p.10 / Chapter 3.1.2 --- K-K analyais --- p.12 / Chapter 3.2 --- Effectiveness of the F-log algorithm and data interpretation --- p.13 / Chapter 3.2.1 --- Removal of the plural scattering using F-log --- p.13 / Chapter 3.2.2 --- Deduction of the dielectric function --- p.14 / Chapter 3.3 --- Shortcomings and limitations --- p.15 / Chapter 3.3.1 --- Spectrum collection range --- p.15 / Chapter 3.3.2 --- Artificial peaks in the low energy range (0-5 eV) --- p.18 / Chapter 3.3.3 --- Thin specimens --- p.19 / Chapter 3.3.4 --- Spectra taken at q>0 --- p.22 / Chapter Chapter 4 --- Direct deconvolution method / Chapter 4.1 --- Theory --- p.26 / Chapter 4.2 --- Results and discussion --- p.31 / Chapter 4.2.1 --- Results of the original direct deconvolution algorithm --- p.31 / Chapter 4.2.2 --- Results of the revised direct deconvolution algorithm --- p.32 / Chapter 4.2.2.1 --- Removal of the plural scattering of the spectra taken at zero momentum transfer --- p.32 / Chapter 4.2.2.2 --- Removal of the plural scattering of the spectra taken at q>0 --- p.38 / Chapter 4.2.3 --- Evaluation of the revised direct deconvolution algorithm --- p.39 / Chapter Chapter 5 --- Elastic-inelastic interaction multiple scattering correction / Chapter 5.1 --- Theory --- p.44 / Chapter 5.2 --- Solution --- p.46 / Chapter 5.3 --- Results and discussion --- p.49 / Chapter Chapter 6 --- Conclusions --- p.52 / Reference --- p.54 / Appendix: / Chapter A1 --- The F-log deconvolution program code / Chapter A2 --- The Kramer-Kronig analysis program code / Chapter A3 --- The revised F-log program code to make allowance for the collection range problem / Chapter A4 --- Program code to reconstruct the ZLP / Chapter A5 --- The direct deconvolution program code

Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1990. / Vita. Abstract. Includes bibliographical references (leaves 138-141). Also available via the Internet.

The purpose of this thesis is to study energy losses suffered by protons in traversing a plasma through collision with the electrons of the plasma. For these electrons a variety of non-Maxwellian velocity distributions are assumed.

<p> Energy loss was measured across a 3.0 inch hydrocyclone operating with and without an air core. </p> <p> The separational efficiency, as indicated by the (Dp)50 diameter, was measured as a function of feed concentration, feed flow rate and volume split. </p> <p> This (Dp)50 "cut size" was obtained from mass balances on the total solids and particle size distributions for the feed, overflow and underflow. </p> / Thesis / Master of Engineering (MEngr)

Thesis (Ph. D.) in Physics--University of Maine, 2003. / Includes vita. Includes bibliographical references (leaves 153-158).