Cryomagnetics pioneered much of the technology associated with pulse-tube cooled, cryogen-free superconducting magnet systems. In fact, the world’s first 9T, 4.2K pulse-tube cooled superconducting magnet system was manufactured by Cryomagnetics in 1999.
Likewise, Cryoconcept is also a world leader in cryogen-free dilution refrigerators. In conjunction with technology from the CEA and CRNS laboratories, Cryoconcept’s cryogen-free dilution refrigerators offer the fastest cooldown times, no physical contact between the dilution stage and cryocooler for the lowest vibration level possible, and many other innovative features.
Combining both companies’ strengths results in a cryogen-free dilution refrigerator/superconducting magnet system with unmatched performance, reliability, and ease of use.
The dilution refrigerator is available with up to 400μW of cooling power at 100mK with a base temperature of less than/equal to 10mK. The superconducting magnet is available with fields up to 14 Tesla with a variety of bore sizes and homogeneous volumes.
The system integrates a high performance cryogen-free dilution refrigerator with a cryogen-free high field superconducting magnet. The combination is cooled using a low vibration pulse tube cryocooler and uses an advanced control system to simplify operation. The system is easy to maintain, and since everything is cooled by a single refrigerator, it is very efficient.
The system also incorporates an automatic gas handling system optimized for use with the dilution refrigerator. Control is through a user-friendly touch-screen interface or remotely through an Ethernet interface. The superconducting magnet can be controlled through Ethernet, USB, or IEEE-488 interface.
The picture above shows a compact cryogen-FREE dilution refrigerator/superconducting magnet system. In this configuration, the superconducting magnet is installed parallel to the dilution.
Highlights of Cryomagnetics/Cryoconcept’s Cryogen-Free DR Systems:
- Large 300 mm diameter x 300mm height sample space (without magnet).
- 300K to 3K cooling using double still circulation: <12 hours from 300K to < 100mK.
- Joule-Thomson based dilution process means no separately pumped pot required for condensing.
- Sample access via twisted pairs, ultra-miniature coax, optical and/or line-of-sight.
- Still with gold-plated copper flange and customer-specified experimental hole patterns.
- Continuous heat exchanger.
- 100mK exchanger with gold-plated copper flange and customer-specified experimental hole patterns.
- Mixing chamber with gold-plated copper flange and thermal link to the sample position.
- Exchangeable connector plates provided on all experimental lines.
- Custom design of the sample holder available on request.
- Complete thermometry from 4.2K to 15mK.
- Optional integrated superconducting magnet.
- Simple operation using Cryoconcept’s automatic gas handling system with CryografTM touch-screen control – remotely accessible via Ethernet.
Highlights of Cryomagnetics’ Cryogen-Free Superconducting Magnets:
- Magnetic fields up to 14 Tesla.
- Variety of bore sizes to accommodate customer sample space requirements.
- Proven track record of safety, reliability, and ease of operation.
Cryomagnetics also manufactures a line of cryogen-free superconducting magnet systems with integrated variable temperature inserts (C-Mag). The C-Mag product line offers an upgrade path to He3 and dilution inserts.