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 E-Mail IMAGE: 4 K pulse tube cryocooler developed by researchers at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences view more  Credit: Liubiao Chen/University of Chinese Academy of Sciences WASHINGTON, April 6, 2021 Cryocoolers are ultracold refrigeration units used in surgery and drug development, semiconductor fabrication, and spacecraft. They can be tubes, pumps, tabletop sizes, or larger refrigerator systems. The regenerative heat exchanger, or regenerator, is a core component of cryocoolers. At temperatures below 10 kelvins (-441.67 degrees Fahrenheit), performance drops precipitously, with maximum regenerator loss of more than 50%. In their paper, published in Applied Physics Letters, by AIP Publishing, researchers at the University of Chinese Academy of Sciences used superactivated carbon particles as an alternative regenerator material to increase cooling capability at temperatures as low as 4 kelvins.

United statesBiao yangJunjie wangLiubiao chenYuanheng zhaoUniversity of chinese academy sciencesApplied physics lettersChinese academyஒன்றுபட்டது மாநிலங்களில்பியாோ யாங்பல்கலைக்கழகம் ஆஃப் சீன கலைக்கழகம் அறிவியல்பயன்படுத்தப்பட்டது இயற்பியல் எழுத்துக்கள்சீன கலைக்கழகம்