DryMag
Cryogen-free superconducting magnet system
The Lake Shore DryMag is a cryogen-free superconducting magnet system with performance characteristics tailored to individual experimental requirements. The system enables materials characterization down to 1.5 K (with He-3 insert down to 300 mK), with horizontal fields up to 7 T (optical) or vertical fields up to 12 T (non-optical). The system features easy sample exchange through top sample loading and can be interchanged without warming the cryocooler to room temperature. Additionally, samples can be rotated about the vertical axis with options for horizontal rotation. The standard DryMag has a fully integrated variable temperature insert with sample in static exchange gas. For more information and specifications download the DryMag cryogen-free magnet systems PDF.
Wet superconducting magnet systems are also available upon request. Contact us for more information.
What is a superconducting electromagnet?
A superconducting electromagnet is a type of electromagnet made using superconducting wire, which has zero electrical resistance when cooled below a certain critical temperature. This allows it to carry very large electric currents without energy loss, producing extremely strong and stable magnetic fields.
They use superconducting wire, typically made from materials like niobium-titanium (NbTi) or niobium-tin (Nb₃Sn). The wire is cooled using liquid helium or liquid nitrogen to reach superconducting temperatures (often below 10 K or -263 °C).
The advantage of superconducting electromagnets is that once superconducting, a current can circulate indefinitely without power input. The current generates a magnetic field, just like in a regular electromagnet, but much stronger and more stable.
Superconducting magnets can generate fields of several tesla (T), much higher than conventional electromagnets. They are energy efficient—there are no resistive losses once the superconducting state is achieved—and are excellent for applications requiring highly stable magnetic fields.
Applications include MRI machines for high-resolution medical imaging, particle accelerators like those at CERN, maglev trains for frictionless, high-speed travel, and fusion reactors such as tokamaks.