Top-Loading Dilution Refrigerator Insert

KelvinoxTLM

A wet dilution refrigerator for top loading samples into the mixture – the ideal solution for sweeping field experiments and rapid sample exchange.

Compatible with Integra with a base temperature of < 15 mK, a cooling power of 400 µW at 100 mK and a sample space of 34 mm.

Wet systems use liquid cryogens to provide the 4 K environment; sample temperatures are < 10 mK to 300 K.

High Magnetic Fields

Superconducting magnet technology providing high magnetic fields of 20 T and above.

Unconventional Superconductivity

Investigation of new mechanisms for superconductivity at low temperature and high field.

Electrical Transport Measurements

High magnetic fields and low temperatures for hall effect and quantum hall effect measurements.

Key Specifications

Base Temerature:	≤ 15 mK
Base Temperature Stability:	± 1 mK
Maximum Temperature:	1 K
Cooling Power at 100 mK:	≥ 400 μW (guaranteed) ≥ 600 μW (typical)
Sample Environment:	Sample in Liquid

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Features

Compatible with our wet Integra magnet systems.
Top-loading of the sample directly into the ³He/⁴He mixing chamber ensures good sample thermalisation, high stability of the thermal environment and optimum operation in high magnetic fields.
Multi-service, multi-user access: unique design which can be used with a range of sample probes such as a mechanical rotator or high frequency co-axial lines.
Quick and easy sample change: no need to remove the mixture during sample change, giving quicker experiment turnaround times.
Non metallic sample environment: ideal for experiments such as solid state NMR, where removing metallic material surrounding the pickup coil resonant circuit, is key to accurate measurements.
Delivered with a gas handling system, which enables automatic operation of a dilution refrigerator using sophisticated software and virtual instrument drivers for LabVIEW.

Options / Accessories

Sample Probes DF and RF Wiring Mechanical Rotator

Sample Probes

34 mm diameter sample probes for sample-in-liquid experiments at high magnetic fields. The probe comes with a vacuum lock and sliding seal for safe loading into the mixture as well as thermometry and heater for temperature control. Our standard probe has 10 spare connector ports at room temperature for installation of RF and DC wiring and a dedicated port for installation of a rotator drive rod.

DF and RF Wiring

Choose between twisted pairs of constantan, copper or NbTi for low frequency measurements, flexible stainless steel coaxes for MHz signals or semi-rigid stainless steel coaxes for up to 18 GHz. Alternative wiring materials and attenuators available on request.

Mechanical Rotator

Mechanical rotator with 15 x 15 mm sample space allows for 260 degree polar rotation in high magnetic fields. Automated stepper motor control using MercuryiTC.

Resources

KelvinoxTLM Brochure