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Closed Cycle Refrigerator Systems

Closed Cycle Refrigerator Systems
Closed Cycle Refrigerator Systems
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Product Code : 10 Kelvin
Brand Name : Janis
Product Description
10 Kelvin closed cycle refrigerator from Janis Research, cryogenic equipment, cryogen free, cryocooler. When combined with an automatic temperature controller, Janis closed cycle systems become powerful tools for studying the properties of materials over a wide range of temperatures. 

As the name implies, closed cycle systems recirculate a fixed volume of gas to provide cooling to the sample mounting stages, and no gas is added or removed during operation. Janis CCR's utilize the Gifford-McMahon thermodynamic cycle, based on the controlled compression and expansion of helium gas. A compressor is used to provide the high pressure helium gas needed for the cycle. Flexible metal gas lines deliver the compressed helium gas to the refrigerator, and return the low pressure gas to the compressor for recirculation. The refrigerator includes two cold stages, one for cooling the sample and one for cooling a radiation shield that surrounds the sample.

CCR systems are available in two general configurations, sample in vacuum (cold finger), and sample in exchange gas (top loading). Within these broad categories, models with optical, non-optical, compact and sub-compact designs are available, some with temperature range to 475/700 K. Janis also offers systems for specific applications, including Mössbauer spectroscopy, VSM, and Hall Effect measurements.

In order to deliver your system as quickly as possible, several optical CCR configurations are available for fast delivery from stock. Our experienced staff of physicists and engineers are also available to assist in custom designing a system to meet virtually any experimental requirement. Complete systems are available including CCR, temperature controller, and vacuum pumping station. 

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