Cryogen-Free Superconducting Magnet Systems
Janis Research is pleased to offer cryogen-free superconducting magnet systems for both optical and non-optical applications. These systems are offered in both room temperature bore configurations and variable temperature integrated configurations for operation from below 2 K to 300 K. Non-optical systems are also offered with vertical room temperature bore tubes, along with a top-loading cryogen-free cryostat for operation between 1.5 K and 300 K or higher. The magnets are typically cooled through reliable Gifford McMahon or pulse tube coolers for lower vibrations. The independent variable temperature cryostats can also be used separately for ultimate convenience.
Our cryogen-free magnet systems can also be combined with microscopy cryostats, He-3 cryostat, and dilution refrigerators to cover temperatures down to the 10 mK range or with high-temperature inserts for operation up to 800 K. They are available to investigate a large variety of research studies such as quantum Hall effect, quantum dots, Mössbauer spectroscopy, magneto-optical experiments, plus many others. They are also available with 2-axis or 3-axis vector magnets for spintronic and neutron scattering or other experiments that require precise variation of the field direction relative to sample.
These include optical and non-optical cryogen-free magnets (0 to 9 T) with integrated variable temperature inserts in a static helium gas environment, with variable temperature operation from below 2 K up to 300 K. They also include room temperature bore cryogen-free systems with standard separate variable temperature cryogen-free cryostats, with sample in exchange gas (for top loading) or sample in vacuum. The variable temperature cryostats can be based on a 4.2 K refrigerator, a 7 K refrigerator, or a 10 K refrigerator. Magnetic fields ranging between 14 T and 5 T are available for all these systems.
Download the Janis DryMag Cryogen-Free Magnet Systems PDF.
Cryogen-Free Superconducting Magnet Systems Specifications
|Sample environment||Operating temperature||Magnetic field||Optical access|
|Vacuum/UHV or exchange gas||1.5 K to 700 K||0 T to 14 T||Yes|
Janis DryMag 1.5 K measurement system
- Continuously operating
- 7 T (optical) and 12 T (non-optical) maximum field options
- Maximum operating temperature: 420 K
- Sample in vacuum or static helium exchange gas
Optional Lake Shore measurement system for:
- Hall voltage
- IV curve
- Resistance (four probe and van der Pauw)
- Hall coefficient
- Hall mobility
- Anomalous Hall effect (AHE)
- Carrier type/concentration/density