Cryogenic Engineering and Technologies : Principles and Applications of Cryogen-Free Systems book cover
1st Edition

Cryogenic Engineering and Technologies
Principles and Applications of Cryogen-Free Systems

ISBN 9781498765763
Published November 6, 2019 by CRC Press
385 Pages 351 B/W Illustrations

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Book Description

Cryogen-free cryogenics is leading a revolution in research and industry by its significant advantages over traditional liquid helium systems. This is the first overview for the field, covering the key technologies, conceptual design, fabrication, operation, performance, and applications of these systems. The contents cover important topics such as the operating principles of 4 K cryocoolers, enabling technologies (including vibration reduction) for cryogen-free systems, the cryogen-free superconducting magnet, and cryogen-free systems that reach millikelvin. It highlights the wide range of applications in materials science, quantum physics, astronomy and space science, medical sciences, etc.

Key features:

• Introduces technologies and practical know-how employed for cryogen-free systems of using 4 K cryocoolers to replace liquid helium

• Addresses state-of-the-art of cryogen-free superconducting magnets, subkelvin refrigeration systems of the He-3 sorption cooler, adiabatic demagnetization refrigerator (ADR) and dilution refrigerators (DR)

• Discusses applications of cryogen-free systems in modern instruments and equipment

Table of Contents

Chapter 1. Evolution of Cryogenic Engineering

Chapter 2. Helium: Its Application, Supply, and Demand

Chapter 3. 4k Regenerative Cryocoolers

Chapter 4. Features and Characteristics of 4k Cryocoolers

Chapter 5. Reduction of Vibration and Drift

Chapter 6. Enablisng Technologies

Chapter 7. Cryogen Free Superconducting Magnets

Chapter 8. Cryogen-free 4k and 1.5k Systems

Chapter 9. Cryogen-free 3He Systems

Chapter10. Adiabatic Demagnetization Refrigerator (ADR) Systems

Chapter 11. Cryogen-free Dilution Refrigerator

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Dr. Zuyu Zhao received his B.S. degree from Fudan University in 1982, Class 77. He came to the United States in 1983 with the World Bank Scholarship program and graduated from Northwestern University with a Ph.D. degree of physics in 1990. He then spent two and a half years working at Harvard University as a post-doc and set up a new lab pursuing Bose-Einstein condensation on spin polarized hydrogen. Dr. Zhao joined Janis Research Company in 1993 and focused on developing custom ultra-low temperature facilities for the research and science community. He currently serves on the Board of Directors and as Vice President-Principal Scientist of the company. He served from July 1, 2007 through June 30, 2013 as an elected member of the American Institute of Physics (Physics Today) Advisory Committee.

Dr. Chao Wang has been the director of research and development for Cryomech since 1998. Dr. Wang received his B.S. from Shanghai Institute of Mechanical Engineering in 1985 and M.S. and Ph.D. from Xian’An Jiaotong University in 1990 and 1993. Between 1993 and 1996, he was a post-doctoral researcher and later became an associate professor at Cryogenic Lab, CAS. He later received an A.V. Humboldt Research Fellowship for study at the University of Giessen. In 1998, Dr. Wang joined the Cryomech team where his main research focus is development of pulse tube cryocoolers, GM cryocoolers and cryocooler-related cryogenic systems. During his time with Cryomech, he has developed and commercialized the world’s first two-stage pulse tube cryocoolers below 4K. He has published more than 80 scientific papers and has been awarded five patents. Dr. Wang has won a number of awards for his contributions to cryogenic refrigeration technology, including the Roger W. Boom Award (2000) from the Cryogenic Society of America.

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