Ultrahigh Vacuum Practice


Book Description

Ultrahigh Vacuum Practice covers topics about components suitable for ultrahigh vacuum applications, their theory of operation, their assembly and use, and their performance and calibration. The book starts by discussing the fundamentals of vacuum science and technology. The text then describes the physical properties and methods of preparing the materials for ultrahigh vacuum and the various pumps and their performance and application to ultrahigh vacuum systems. The mechanism and performance of the various ultrahigh vacuum gauges and the problem of gauge calibration at low pressures, as well as the accuracy that can be expected are discussed as well. Partial pressure measurements, ultrahigh vacuum components, and liquid nitrogen replenisher are also considered. The book tackles the system requirements and applications, as well as methods for detecting leak. Users or potential users of ultrahigh vacuum equipment and expert vacuum engineers will find the book useful.




Fundamentals of Vacuum Science and System Design for High and Ultrahigh Vacuum, Volume 1


Book Description

Fundamentals of Vacuum Science and System Design for High and Ultra-High Vacuum, Volume 1: Introduction to Vacuum and Systems details the important practical considerations in design of vacuum systems for various vacuum deposition technologies. Topics covered include: Introduction to vaccum and end uses, molecular density in vacuum, molecular flow in various vacuum regimes, characteristics of gas composition at various molecular densities, general principles of gas-solid interactions, vacuum pump technology, pressure sensors, leak detection and the impact of fundamental design decisions and operating practices on vacuum system performance. The introductory sections are designed to introduce the reader to basic concepts in vacuum technology. More detailed sections provide fundamental descriptions of basic vacuum pumps and pumping mechanisms in current practice and provides insight into the various pros and cons for each approach. System design, assembly, maintenance, and trouble-shooting are reviewed in detail. This volume also describes a wide range of pressure measurement approaches, and includes several key characterization techniques, example applications on systems for rough vacuum, high vacuum and ultra-high vacuum, as well as trade-offs in system design, allowing for the reader to develop an understanding of all the elements required for a successfully designed, assembled, and operating system. - Covers vacuum pump technology, taking a system from atmosphere down to high or ultra-high vacuum - Discusses the fundamental descriptions of vacuum pumps and pumping mechanisms in current practice and provides insight into the various pros and cons for each approach - Provides an overview of practical vacuum system operating techniques that will ensure optimal performance and troubleshooting methods to identify system deficiencies










NASA Scientific and Technical Reports


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Vacuum Switchgear


Book Description