Multistage pulse tube refrigeration system for high temperature superconductivity

摘要

A pulse tube refrigeration system (21) wherein the pulse tube working gas is cooled to a defined first stage temperature and is brought to a defined second stage temperature by operation of a regenerator (33) and pulse tube (34), which are in flow communication through a cold heat exchanger (23), prior to providing refrigeration to a high temperature superconductor (10).