Roth A. Vacuum Technology 3ed 1990 torrent

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Although the phenomena are not precisely those assumed by the early investigators, the "horror vacuum" exists, at least here on the earth, where the surrounding exerts its "opposition" to our attempts at isolating a part of the space and completely evacuating its gas content. This is—in fact—just a particular case of the general tendency to oppose any disturbance of the equilibrium. In outer space, where the equilibrium pressure is in the vacuum range, no efforts are required
to evacuate our vessel; on the contrary, many difficulties are encountered in keeping it at atmospheric pressure.
The "horror vacuum" appears to the vacuum technologist as the combined effect of conductance, leak rate, desorption, permeation, vapour pressure, diffusion, etc., and Vacuum Technology comprises to date the knowledge developed to avoid or to use these phenomena in order to achieve, measure and maintain lower and lower pressures.
This book is a result of the Postgraduate Course given by the author at the Faculty of Engineering of the Tel-Aviv University. It attempts to cover vacuum technology from the low vacuum up to the ultra-high vacuum as it is known today. The material presented in the book was selected with a double aim: — to give enough detailed explanations on principles and phenomena that the author considered as fundamental for any worker in the field, and —to give the reader the necessary connections to the literature on those topics which are not treated in detail. The book includes numerical examples, tabulated and plotted data, as well as a collection of nomograms which may provide the answers to most of the questions which occur to workers in this field.
It is hoped that the book will provide a useful background for graduates and undergraduates in Universities and Technical Colleges, and serve as a "handbook" for scientists and engineers having to cope with problems of vacuum technology in R & D work or in industry