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This refrigerator is a GM-JT compound refrigerator. The conventional GM refrigerator precools the helium before entering the JT refrigerator to achieve a low temperature of 1K. According to the different needs of users, the JT refrigerator gas circuit has two options: open and closed. In the open mode, the helium consumption is 0.7SLM when the refrigerator is running at the lowest temperature, and the conventional gas cylinder can work continuously for up to 6 days; if the closed mode is realized with an additional gas circuit and filtration system, the helium can be reused, further reducing the cost of the cryogenic system.
| ● Does not consume scarce and expensive liquid helium, low operating costs | ● Compatible with ultra-high vacuum environment | ● Small and compact, with DN100CF mounting flange, convenient for system integration |
| ● Fast cooling speed, it only takes 8 hours to cool from room temperature to the lowest temperature | ● The lowest temperature of JT refrigerator can reach 1.1K | ● The cooling capacity of JT refrigerator is 20mW@1.5K |
| ———— 1K refrigerator cooling curve———— | ———— JT cold head temperature stability curve ———— |
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