Overview
- Provides a diffusion pump (DP) evacuation system for clean vacuum
- Presents in detail the development of vibration-free DP, sputter ion pump for extreme high-vacuum evacuation and sputter ion pump for inert gases such as Ar and Xe
- Describes how to prevent contamination build-up due to electron beam irradiation
Part of the book series: SpringerBriefs in Applied Sciences and Technology (BRIEFSAPPLSCIENCES)
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Table of contents (6 chapters)
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Front Matter
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Back Matter
Keywords
About this book
This book describes the developmental history of the vacuum system of the transmission electron microscope (TEM) at the Japan Electron Optics Laboratory (JEOL) from its inception to its use in today’s high-technology microscopes. The author and his colleagues were engaged in developing vacuum technology for electron microscopes (JEM series) at JEOL for many years. This volume presents a summary and explanation of their work and the technology that makes possible a clean ultrahigh vacuum.
The typical users of the TEM are top-level researchers working at the frontiers of new materials or with new biological specimens. They often use the TEM under extremely severe conditions, with problems sometimes occurring in the vacuum system of the microscopes. JEOL engineers then must work as quickly as possible to improve the vacuum evacuation system so as to prevent the recurrence of such problems. Among the wealth of explanatory material in this book are examples of users’ reports of problems in the vacuum system of the JEM, such as the occurrence of a micro-discharge and the back-streaming of the diffusion pump (DP) oil vapor.
This work is a valuable resource for researchers who use the transmission electron microscope and for engineers and scientists interested in its technology.
Authors and Affiliations
About the author
Nagamitsu Yoshimura
1965: Graduated from Osaka Prefecture University, Engineering Division.
1965: Entered JEOL Ltd.
1985: Received Doctor of Engineering degree from Osaka Prefecture University. Ph.D. Thesis: “Research and Development of the High-Vacuum System of Electron Microscopes” (in Japanese).
1995: Qualified as a consultant engineer in physical field by passing the qualifying examination.
1965 – 2002: Engaged in research and development of vacuum-related technology in electron microscopes for more than 35 years at JEOL-group companies.
2002: Retired from JEOL Ltd.
Bibliographic Information
Book Title: Historical Evolution Toward Achieving Ultrahigh Vacuum in JEOL Electron Microscopes
Authors: Nagamitsu Yoshimura
Series Title: SpringerBriefs in Applied Sciences and Technology
DOI: https://doi.org/10.1007/978-4-431-54448-7
Publisher: Springer Tokyo
eBook Packages: Physics and Astronomy, Physics and Astronomy (R0)
Copyright Information: The Author(s) 2014
Softcover ISBN: 978-4-431-54447-0Published: 20 September 2013
eBook ISBN: 978-4-431-54448-7Published: 12 September 2013
Series ISSN: 2191-530X
Series E-ISSN: 2191-5318
Edition Number: 1
Number of Pages: XI, 125
Number of Illustrations: 83 b/w illustrations, 3 illustrations in colour
Topics: Spectroscopy and Microscopy, Nanotechnology and Microengineering, Machinery and Machine Elements, Measurement Science and Instrumentation