X-Message-Number: 7210 Date: Sat, 23 Nov 1996 21:33:41 +0100 (MET) From: Eugene Leitl <> Subject: FYI: UCLA short courses on Cryogenics (fwd) ____________________________________________________________________________ |mailto:|transhumanism >H, cryonics, | |mailto: |nanotechnology, etc. etc. | |mailto:|"deus ex machina, v.0.0.alpha" | |icbmto:N 48 10'07'' E 011 33'53'' |http://www.lrz-muenchen.de/~ui22204| ---------- Forwarded message ---------- Date: Sat, 23 Nov 1996 11:15:16 -0500 From: William R. Goodin <> To: Multiple recipients of list HYDROGEN <> Subject: UCLA short courses on Cryogenics On February 24-28, 1997, UCLA Extension will present the short course, "Advanced Long-Life Cryocoolers", on the UCLA campus in Los Angeles. The instructors are Ray Radebaugh, PhD, NIST; Graham Walker, PhD, University of Calgary; Robert Fagaly, PhD, Conductus; Gerald Pruitt, Hughes Electron Dynamics; and Ron Ross, JPL. Each participant receives extensive course notes and the text, "Low-Capacity Cryogenic Refrigerators", G. Walker and E.R. Bingham (Oxford University Press, 1994). This course provides a thorough introduction to cryocoolers (miniature refrigerators used to achieve and maintain cryogenic temperatures of less than 120K). It deals with both regenerative and recuperative cryocoolers, with emphasis on such regenerative systems as the Stirling, Vuilleumier, Gifford-McMahon, and pulse tube. Recuperative systems include the Joule-Thomson, Brayton, and Claude cycle. Instruction focuses on smalland intermediate capacity cryocoolers designed for infrared detectors,electronic devices, superconducting sensors, superconducting magnets,and cryopumps. This course does not cover large-scale industrialliquefaction turbine systems. Fundamentals and operating principles of the mechanical regenerative devices most often used for the 65-80K temperature range are explained, especially in the context of the new high-temperature superconductors. Multistage devices which achieve much lower temperatures are then discussed. Design methods as well as construction techniques are covered in detail. The latter part of the course deals with small and intermediate recuperative systems, and addresses various alternative non mechanical systems for temperatures ranging from 120K down to the nanokelvin range. Magnetic refrigerators are also analyzed in this segment of the course. Such application areas as infrared detectors, superconducting quantum interference devices (SQUIDs), superconducting magnets, maser and parametric amplifiers, computers, and high-temperature superconductors are examined, with an emphasis on interfacing problems. Two site visits are a highlight of the course. The first is to UCLA Professor T.H.K. Frederking's laboratory where research on cryogenic heat transfer and pulse tube refrigeration is being conducted. The second is to the Jet Propulsion Laboratory in Pasadena, a major research and development lab for unmanned spacecraft and a leader in cryocooler R&D. UCLA Extension has presented this highly successful short course since 1980. The course fee is $1595, which includes the text and all course materials. These materials are for participants only, and are not for sale. _________ On March 3-4, 1997, UCLA Extension will present the short course, "Cryogenic and Hydrogen Safety", on the UCLA campus in Los Angeles. The instructors are Frederick J. Edeskuty, PhD, Los Alamos National Laboratory; and Mark A. Daugherty, PhD, Los Alamos National Laboratory. Each participant receives extensive course notes and the text, "Safety in the Handling of Cryogenic Fluids", F.J. Edeskuty and W.F. Stewart (Plenum Press 1996). Safety for workers and/or the public is a vital consideration for any industrial or laboratory operation. The cost of accidents is another factor to consider, and where cryogenic systems are involved, equipment replacement costs can be substantial compared to other systems. This two-day course is intended for scientists, engineers, and technicians involved in programs that make use of cryogenic fluids in any capacity, or in the utilization of hydrogen as a fuel. The course should enable participants to recognize the causes for potential hazards and methods to eliminate them. Lectures are arranged so that the safe handling of cryogenic fluids and the hazards of hydrogen as a cryogen are discussed on the first day. The second day also addresses cryogenic fluids, but focuses on the specific problems of handling hydrogen, either as a liquid or as a gas at ambient temperature. The course fee is $895, which includes the text and all course materials. These materials are for participants only, and are not for sale. ____________ For additional information and a complete course descriptions, please contact Marcus Hennessy at: (310) 825-1047 (310) 206-2815 fax http://www.unex.ucla.edu/shortcourses These courses may also be presented on-site at company locations. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=7210