Liquid-helium temperature is a widely used working temperature in low-temperature
physics. At present, liquid-helium or low-frequency cryocoolers, including Gifford Mahon …

A looped-cascade thermoacoustic driven cryocooler is proposed and theoretically studied in
this paper. This system is capable of achieving ideal acoustic fields by employing different …

The size of Stirling and Stirling‐type pulse tube cryocoolers is dominated by the size of the
pressure oscillator. Such cryocoolers typically operate at frequencies up to about 60 Hz for …

Multi-stage Stirling pulse tube cryocoolers (SPTCs) working at liquid helium temperatures
are attractive because of their promising potential in tactical and space applications …

A pulse tube cryocooler operating at 120 Hz with 3.5 MPa average pressure achieved a no-
load temperature of about 49.9 K and a cooldown time to 80 K of 5.5 min⁠. The net …

The efficiency of conventional pulse tube refrigerator (PTR) is bounded due to the
dissipation of acoustic power at the hot end. Thus, the acoustic power recovery is of great …

An artificial neural network (ANN) model is proposed to predict the working conditions for the
pulse tube cooler (PTC) in this paper. Using this model, the piston stroke and pressure …

With the rapid development of infrared material and the serious threat of global warming and
ozonosphere depletion, Stirling-type pulse tube refrigerators (PTRs) attract much attention …

He-3 is generally recognized for its ability to provide more excellent thermophysical
performance than He-4, especially in the 4 K temperature range. However, this was not …

Precooled phase shifters can significantly enhance the phase shift effect and further improve
the performance of pulse tube cryocoolers. A separate three-stage Stirling pulse tube …