making better thin film samples. Vladimir Stoica collected reflectivity data from the platinum films. ...... An ultrafas
AN ULTRAFAST PHOTO-ELECTRON DIFFRACTOMETER By Peter Edward Diehr
A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Applied Physics) in The University of Michigan 2009
Doctoral Committee: Professor Roy Clarke, Co-chair Emeritus Professor Gérard A. Mourou, Co-chair Professor Massoud Kaviany Professor Steven M. Yalisove Associate Professor David A. Reis
To all the people who helped or encouraged me, thanks! Ibrahim El-Kholy taught me how to build ultrafast electron guns, though we (and it) started out slowly enough. Paul Van Rompay helped for a year and more, both with experimental design and automation, and the management of vacuum chambers and Siamese cats. Paul Fairchild of Creative Machine Works assisted with mechanical design and machining expertise for vacuum systems; he also taught my son Eric how to talk to a block of metal and determine who is to be the master, as well as introducing me to Dan Gorzen of X-Ray and Specialty Instruments. Dan Gorzen has been very helpful with high voltage problems for the electron gun and the microchannel plate detectors. John Nees of CUOS was always friendly and helpful with the laser and optical questions, even the questions that shouldn’t need to be asked. Pascal Rousseau of CUOS was very helpful with a number of instrumentation and computer support issues. Professor Eric Essene of Geology and Carl Henderson, John Mansfield, Kai Sun from both locations of the Electron Microbeam Analysis Laboratory were helpful and informative, assisting with equipment used for thin film preparation and their analysis. Codrin Cionca, among other things, helped with making better thin film samples. Vladimir Stoica collected reflectivity
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