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A high-frequency coaxial multi-bypass pulse tube refrigerator (MBPTR) was designed, manufactured, and tested. The cold finger is driven by a linear compressor through a connection tube to reduce the vibrations coming from the compressor. The pulse tube refrigerator adopts a coaxial configuration with a double-inlet and a single multi-bypass to improve the performance. With Er 3 Ni spheres...
Recently, we reported a single-stage Stirling-type pulse tube cryocooler (SPTC) that achieved a no-load temperature of 18.6K and 0.2W/20.6K with 268W input power at the frequency of 38Hz. By further optimizing the regenerator, using the stainless steel screens only, a new SPTC driven by a dual-opposed linear compressor has been built and tested. At present, a lowest temperature of 15.5K, which is...
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