Remote
cooling loops
Absolut System is developing cryogenic cooling configurations using closed-loop Helium in the 2 K to 300 K range. One application is the cooling of superconducting magnets.
Remote cooling
loops
Absolut System is developing cryogenic cooling configurations using closed-loop Helium in the 2K to 300K range. One application is the cooling of superconducting magnets.
Remote cooling loops
Remote cooling loops
Remote cooling capacity over a wide temperature range.
Remote helium circulation loops provide remote cooling capability using a flexible line between a cold box (cryostat) containing the cryogenic gas and the application. They are the ideal solution for versatile, low-vibration remote cooling.
Test benches for industrial, space and scientific research:
- Electro-optical characterization
- Characterizing the spatial noise of infrared detectors
- Testing superconducting electrotechnical equipment
- Magneto-optical properties of semiconductors
Key Points
- Without use of cryogenic fluid
- Remote cryostat: very low vibration
- Suitable: length, power, temperature
- Contamination-free fluid circulation
- Easy operation
Test benches for industrial, space and scientific research:
- Electro-optical characterization
- Characterizing the spatial noise of infrared detectors
- Testing superconducting electrotechnical equipment
- Magneto-optical properties of semiconductors
Key Points
- Without use of cryogenic fluid
- Remote cryostat: very low vibration
- Suitable: length, power, temperature
- Contamination-free fluid circulation
- Easy operation
Suitable temperature ranges
These remote cooling loops meet the needs of electro-optical characterization test benches for very long wavelength infrared (VLWIR) detectors on :
- Mercury-Cadmium-Telluride (MCT) technology in the 50-60K temperature range
- MgB2-based superconducting electrotechnical equipment in the 20-30K temperature range (motors, power cables or high-field magnets).
Remote helium cooling loop systems have also been adapted to closed-cycle cryostats with optical access. These are particularly well suited to studying the magneto-optical properties of semiconductors in the 10K region, where extremely low vibration is a key requirement for the interface with the optical table.
Characterizing the spatial noise of IR detectors requires systematic, repetitive measurements at varying temperatures over long periods of time. In this context, Absolut System extends the temperature range of remote helium cooling loops to meet 30-200K characterization with extremely low vibration and user-friendly push-button operation.
New 2K – 4K range
To reach temperatures below 4K and retain the advantages of the flexible loop design, Absolut System offers a coupling of the two-stage Pulse-Tube cryocooler with a Joule-Thomson cryocooler.
Solutions are offered based on the flexible helium loop design for the application range between 30K and 2K (depending on the Joule-Thomson pressure ratio). Additional coupling with the cADR stage can enable cooling at even lower temperatures.
The vibration-free remote cryogenic circulation loop can be fully customized to suit length, power and cold temperature requirements.
Suitable temperature ranges
These remote cooling loops meet the needs of electro-optical characterization test benches for very long wavelength infrared (VLWIR) detectors on :
Mercury-Cadmium-Telluride (MCT) technology in the 50-60K temperature range
MgB2-based superconducting electrotechnical equipment in the 20-30K temperature range (motors, power cables or high-field magnets).
Remote helium cooling loop systems have also been adapted to closed-cycle cryostats with optical access. These are particularly well suited to studying the magneto-optical properties of semiconductors in the 10K region, where extremely low vibration is a key requirement for the interface with the optical table.
Characterizing the spatial noise of IR detectors requires systematic, repetitive measurements at varying temperatures over long periods of time. In this context, Absolut System extends the temperature range of remote helium cooling loops to meet 30-200K characterization with extremely low vibration and user-friendly push-button operation.
New 2K – 4K range
To reach temperatures below 4K and retain the advantages of the flexible loop design, Absolut System offers a coupling of the two-stage Pulse-Tube cryocooler with a Joule-Thomson cryocooler.
Solutions are offered based on the flexible helium loop design for the application range between 30K and 2K (depending on the Joule-Thomson pressure ratio). Additional coupling with the cADR stage can enable cooling at even lower temperatures.
The vibration-free remote cryogenic circulation loop can be fully customized to suit length, power and cold temperature requirements.
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