In the early 1980s, Graham Walker wrote his classic two-volume monograph Cryocoolers. Sections of that landmark work have been referenced more often and by more authors than any other cryogenic paper published in the mid-1980s. Nevertheless, in so dynamic a field, an update--one that is compact, inexpensive, and more ranging--is urgently needed. Low-Capacity Cryogenic Refrigeration provides an elementary yet comprehensive introduction to the subject,...