Tieftemperatur-Refrigerator mit einem Kaltkopf sowie Verfahren zur Optimierung des Kaltkopfes für einen gewünschten Temperaturbereich

摘要

The invention relates to a low-temperature refrigerator (1) for producing temperatures in a defined low-temperature range, with a cold head (3) which is fitted with a regenerator (7) and in which a thermodynamic circulation process (regenerative cold generation process) is carried out to generate cold. To reduce the technical complexity of the cold generation process, it is proposed that the cold head (3) should be a single-stage unit and the physical characteristics of the regenerator (7) in the cold machine (1) should be so selected as to ensure that the cold head (26) has an optimal cold output in the desired temperature range.