Translation of Kryo-Vakuumtechnik.
|Statement||Rene A. Haefer.|
|Series||Monographs on cryogenics -- 4.|
|The Physical Object|
|Number of Pages||435|
This book covers the physical theory, practical techniques, and applications of cryopumping--the production of a vacuum through the use of low temperatures. The importance of this technique has increased greatly in recent years due to the proliferation of new uses and the demand in many vacuum procedures for ultraclean gas atmospheres, low Cited by: Cryopumping mechanisms The cryopumping effect is produced by intimate inte raction between the gas particles to be pumped and a cold surface provided to them in the cryopump. The forces involved are relatively weak (primarily van der Waals dispersion type) and do File Size: 1MB. Cryopumping is the most elementary form of capture pumping. This chapter discusses the concepts, practical considerations, and various forms of cryopumps. From a physics standpoint, there are two simple effects that describe the mechanisms of cryopumping. One is defined as “cryocondensation pumping” and the second as “cryosorption pumping.”. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.
A cryopump or a "cryogenic pump" is a vacuum pump that traps gases and vapours by condensing them on a cold surface, but are only effective on some gases. The effectiveness depends on the freezing and boiling points of the gas relative to the cryopump's temperature. They are sometimes used to block particular contaminants, for example in front of a diffusion pump to trap backstreaming oil, or. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A. Experimental investigations of solid nitrogen formed by cryopumping. Washington, D.C.: National Aeronautics and Space Administration, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: K W Rogers; Celestial Research Corporation; United States. National. Handbook of Surfaces and Interfaces of Materials. Book • Edited by: Fully cross-referenced, this book has clear, precise, and wide appeal as an essential reference source long due for the scientific community. The complete reference on the topic of surfaces and interfaces of materials The information presented in this.
Liquid hydrogen is shown to be the ideal fuel for civil transport aircraft, as well as for many types of military aircraft. Hydrogen Aircraft Technology discusses the potential of hydrogen for subsonic, supersonic, and hypersonic applications. Designs with sample configurations of aircraft for all three speed categories are presented, in addition to performance comparisons to equivalent. Book Review: Cryopumping: Theory and Practice. René A. Haefer, translated by Jack Shipwright and Ralph G. Scurlock, Clarendon Press, Oxford, UK, , ISBN Author: B.A. Hands. Part of the Advances in Cryogenic Engineering book series (ACRE, volume 7) Abstract This interest is mainly the result of the pumping requirements for space environmental simulation chambers of large capacity, that is, in the pressure range of 10 -7 to 10 by: Purchase Handbook of Surfaces and Interfaces of Materials, Five-Volume Set - 1st Edition. Print Book & E-Book. ISBN , Book Edition: 1.