Gases and Vacua (eBook)

Handbook of Vacuum Physics

A. H. Beck (Herausgeber)

eBook Download: PDF

2017 | 1. Auflage
216 Seiten
Elsevier Science (Verlag)
978-1-4831-3802-2 (ISBN)

Infos

Handbook of Vacuum Physics, Volume 1: Gases and Vacua provides information on the many aspects of vacuum technology, from material on the quantum theoretical aspects of the complex semi-conductors used for thermionic and photo-electric emission to data on the performance of commercially available pumps, gauges, and high-vacuum materials. The handbook satisfies the need of workers using vacuum apparatuses or works on the diverse applications of high-vacuum technology in research and industry. The book is a compilation of long articles prepared by experts in vacuum technology. Sufficient theoretical materials are provided to ensure that the underlying principles and formulas are well understood. On the practical side, the provision of accurate tables of physical constants; properties of materials; laboratory techniques; and properties of commercial pumps, gauges, and leak detectors are emphasized. The text will be a valuable reference material to physicists, chemists, engineers, students, and workers in industries using vacuum technology.

Inhalt

Front Cover 1
Gases and Vacua 4
Coppyright Page 5
Table of Contents 6
PREFACE 8
PART 1: VACUUM TECHNOLOGY AS APPLIED TO CONTINUOUSLY PUMPED SYSTEMS 10
CHAPTER 1. VACUUM TECHNOLOGY AS APPLIED TO CONTINUOUSLY PUMPED SYSTEMS 
12 
1. DEFINITIONS OF SYMBOLS 12
2. NOMENCLATURE 15
3. THE FLOW OF GAS BETWEEN CHAMBER AND PUMP 17
4. SOURCES OF GAS WITHIN THE CHAMBER 18
5. RELATION BETWEEN PRESSURE, SPEED AND OUTGASSING RATE 20
6. THE ULTIMATE PRESSURE 20
7. THE TIME OF EVACUATION AND SPEED OF EXHAUST 24
8. DESIGN OF THE PUMPING STAGES 33
REFERENCES 40
PART 2: PROPERTIES OF PUMPS 42
CHAPTER 2. PROPERTIES OF HIGH VACUUM PUMPS AND DESIGN OF VACUUM PUMPING SYSTEMS 44
1. INTRODUCTION 44
2. GENERAL PROPERTIES OF PUMPS 45
3. MECHANICAL BACKING AND ROUGHING PUMPS 54
4. ROOT'S PUMPS 72
5. MULTI-STAGE STEAM EJECTORS 86
6. OIL AND MERCURY VAPOUR PUMPS 92
7. MOLECULAR DRAG PUMPS 118
8. IONIC PUMPS 120
9. SORPTION AND CRYOGENIC PUMPS 130
10. CALCULATIONS AND DESIGN FOR VACUUM PUMPING SYSTEMS 137
CONCLUSION AND ACKNOWLEDGEMENTS 153
APPENDIX: Names and Location of 
154 
REFERENCES 156
PART 3: LEAK DETECTION AND DETECTORS 160
CHAPTER 3. LEAK DETECTION AND DETECTORS 162
1. VIRTUAL LEAKS 162
2. VACUUM STANDARDS 163
3. THE LUSEC 165
4. PRINCIPLES OF LEAK DETECTION 165
5. LEAK DETECTORS 190
5.1. Gas discharge 190
5.2. Detectors having selective response 192
5.3. Ion pump leak detector 193
5.4. Detectors having unique response 194
5.5. The art of finding leaks. 215
REFERENCES 217

Produkt-Details

• Erscheint lt. Verlag: 9.9.2017
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Physik / Astronomie
• Themenwelt: Technik ► Bauwesen
• Themenwelt: Technik ► Maschinenbau
• ISBN-10: 1-4831-3802-X / 148313802X
• ISBN-13: 978-1-4831-3802-2 / 9781483138022