2024 Foundations of Cryocoolers (Digital Files)
The course begins with a discussion of many cryocooler applications followed by a study of thermodynamic and heat transfer fundamentals which are then used to explain how various types of gas-cycle cryocoolers achieve temperatures from about 2 K to 150 K. The operating principles and advantages/disadvantages of the three major recuperative cycles (Joule-Thomson Brayton and Claude) and the three major regenerative cycles (Stirling Gifford-McMahon and pulse tube) are explained. The course covers modeling design approaches fabrication techniques measurement methods and cycle comparisons. This year’s special topic of dilution refrigeration for millikelvin temperatures is given by Fons de Waele. After a general introduction he pays extra attention to dilution refrigerators that are precooled by pulse-tube refrigerators the so-called dry dilution refrigerators.
Course Details
Individual Purchase
The course begins with a discussion of many cryocooler applications followed by a study of thermodynamic and heat transfer fundamentals which are then used to explain how various types of gas-cycle cryocoolers achieve temperatures from about 2 K to 150 K. The operating principles and advantages/disadvantages of the three major recuperative cycles (Joule-Thomson Brayton and Claude) and the three major regenerative cycles (Stirling Gifford-McMahon and pulse tube) are explained. The course covers modeling design approaches fabrication techniques measurement methods and cycle comparisons. This year’s special topic of dilution refrigeration for millikelvin temperatures is given by Fons de Waele. After a general introduction he pays extra attention to dilution refrigerators that are precooled by pulse-tube refrigerators the so-called dry dilution refrigerators.
For Distributors
Distributors may purchase multiple copies of packages to distribute to learners, and follow their progress. Bulk discounts are below.
| Quantity | Price per voucher |
|---|---|
| 1+ | $125.00 |
Instructors
Fons De Waele
De Waele got his PhD in Leiden in Dec. 1972 on the Josephson Effect. After that he moved to the Eindhoven University of Technology where he stayed for the rest of his career. From 1973 to 1994 he worked on dilution refrigeration. In 1995 he changed topics and started working mainly on pulse-tube refrigerators till his retirement in 2001. He had 18 PhD’s under his supervision. De Waele was active in teaching Thermodynamics, Mechanics, and Cryogenics for the students in Eindhoven, but he was also organizer of CryoCourses for PhD students and has given short courses on DR’s and cryocoolers in many places all over the world. After his retirement De Waele is still active as an advisor in various projects.
Ray Radebaugh
Dr. Ray Radebaugh is a NIST Fellow Emeritus with the Applied Chemicals and Materials Division. He joined NIST in 1966 as a post doc for the first two year and stayed on in a permanent position since then. He was the leader of the Cryogenic Technologies Group from 1995 until his retirement in 2009. His research focused on cryogenic refrigeration and material properties. He has taught short courses on cryocoolers since 1981.