In recent years, there have been significant developments in detector technologies in the field of astrophysics, requiring lower temperatures with simple self-contained refrigerators. Temperatures in the range of 1K to 50mK are now achieved by using dedicated closed-cycle miniature sorption coolers.
This book presents the theoretical and experimental knowledge necessary to design and build your own miniature refrigerators, including both single shot and continuous 1 K, 300 mK and 100 mK coolers, and details how to write the needed design software.
This text will be of interest to students and researchers, already familiar with basic physics and thermodynamics, who want to understand how sorption coolers and miniature dilution refrigerators work.
Section I: Background and Theory
Chapter 1: Background
Chapter 2: Heat transfer
Chapter 3: Sorption Cryopumps
Section II: Applications
Chapter 4: Miniature Sorption Coolers - Part 1
Chapter 5: Miniature Sorption Coolers - Part 2
Sections III: Simulations
Chapter 6: Thermal Modelling
Appendix A: Helium Properties
Appendix B: Python Code