HelioxMX - (~15 mK) Dilution Refrigerator

The KelvinoxMX uniquely separates the cooling platform from the experimental services. The modular design provides flexibility to change experimental configurations and thermodynamic performances as needed. This enables multiple users to carry out alternatively configured experiments, with a minimum of disturbance.

Product information

The KelvinoxMX design allows the cryogenic cycle of the dilution refrigerator and the experimental wiring to be kept separate. The experimental insert is interchanged at room temperature using the large 50 mm lineof- sight port on the primary insert. Once the experimental insert is aligned with the primary insert, thermal straps secure the two together. These thermal straps are designed to be easy-to-use whilst also ensuring an optimised thermal link. The sealing between the primary insert and the experimental insert is formed at the top plate by an O-ring sealing and an original design of indium sealing at the IVC flange. The system is then ready to be cooled down as a standard dilution refrigerator.

Components

Primary insert
The primary insert provides a 50 mm line-of-sight access into which a range of interchangeable experimental inserts can be fitted. 1.5 K cooling is provided by continuous flow of 4He through the patented stretched 1 K condenser, minimising microphonic noise generation. Rapid experimental turnaround times are enabled by a sliding seal that permits safe removal and replacement of the dilution refrigerator which also minimises helium loss.

Dilution units
MX100 – providing 100 µW at 100 mK and a base temperature of 15 mK.

Operation
The KelvinoxMX design allows the cryogenic cycle of the dilution refrigerator and the experimental wiring to be kept separate (Figure 1). The experimental insert is interchanged at room temperature using the large 50 mm lineof- sight port on the primary insert. Once the experimental insert is aligned with the primary insert, thermal straps secure the two together. These thermal straps are designed to be easy-to-use whilst also ensuring an optimised thermal link. The sealing between the primary insert and the experimental insert is formed at the top plate by an O-ring sealing and an original design of indium sealing at the IVC flange. The system is then ready to be cooled down as a standard dilution refrigerator.

Technical specifications