Our top-loading Kelvinox®TLM is a high performance dilution refrigerator with a base temperature of less than 15 mK and cooling power of more than 400 µW.

  • Top-loading of the sample directly into the 3He/4He mixing chamber ensures good sample thermalisation, high stability of the thermal environment and guarantee of operation in high magnetic field
  • Multi-service, multi-user access: unique design which can be used with a range of sample probes such as a Swedish 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 and reducing the risk of leaks
  • Non metallic sample environment - ideal for experiments such as solid state NMR when removing metallic material surrounding the pickup coil resonant circuit is key to accurate measurements. Typically, field sweeps of up to 2 T/min leave the temperature of the mixture unaffected

The Kelvinox®TLM is covered by US patent No. 6202439.

Specifications:

Base temperature

≤ 15 mK

Base temperature stability

± 1 mK

Maximum temperature

1 K

Continuous operation

Standard

Sample environment

Liquid

Cooling power at 100 mK

≥ 400 µW

Cooling power at 120 mK

≥ 580 µW

3He / 4He mixture

Optional *

We are able to supply the 3He / 4He with the system. Customer can also use their own system.

Applications

Research areas

Applications

Experimental techniques

Semiconductors

Quantum Hall Effect
Quantum dots
Single electron tunneling
Quantum computing

Magneto-resistance
Hall effect
RF transport
High frequency conductivity

Solid State Physics

Heavy fermions systems
Metal insulator transition
Spin glass
Mesoscopic systems
Giant magnetic resistance

Specific heat
DeHaas-van Alphen Oscillations
Solid state NMR
Electrical resistivity
Magneto-resistance
Neutron scattering

Superconductivity

Low Tc superconductors
Quantum computing  
Josephson junctions
Flux vortices
Quantum initial phenomena

Electrical resistivity
Scanning spectroscopy(STM/AFM)
Squids
AC susceptibility

Astrophysics & Cosmology

Low temperature detectors Superconducting tunnel junctions
Ge bolometers

Electrothermal measurements
Voltage biased measurements
Low energy photon detection

Metrology

Quantum Hall Effect
Voltage standards
Current standards

Magneto-resistance
DC & AC low frequency transport and magnetic measurements
Single electron tunneling

 

System components / options

Every KelvinoxTLM is made up from three main components:

Dilution unit - providing ≥ 400 µW at 100 mK measured at the He mixture phase boundary.

Insert - featuring still pumping line, 1 K pot, diagnostic wiring and inner vacuum can.

Top loading probe - ease of access to samples with a range of experimental services.

 

Automation and control of your dilution refrigerator using the an automatic gas handling system:

All systems are delivered with an automatic gas handling system which enables complete operation of a dilution refrigerator using sophisticated software and virtual instrument drivers for National Instruments' LabVIEWTM.

Options:

  • PT100: 24-way copper/supercon loom wired to the mixing chamber
  • PT200: 2 x S1 co-axial cables wired to the mixing chamber
  • PT210: 4 x S1 co-axial cables wired to the mixing chamber
  • PT300: 2 x UT85-SS-SS coaxial cables wired to the mixing chamber
  • CAPV/CAP: Capillary line with or without valve
  • KELMSWR: Swedish rotator - manual
  • KELMSRWA: Swedish rotator - automation
  • CS100: ROTH1, 30 point calibrated RuO2 sensor to 50 mK
  • CS200: ROTH2, generic calibration RuO2 sensor
  • RB100: AVS47 resistance bridge with rf filtering, cables & IEEE interface
  • TS530: Temperature controller for use with AVS47 resistance bridge
  • IPC: Isobus Picobus converter
  • HTC: Helium cold trap
  • Transfer tube
  • TLMP3: Spare top loading probe, 34 mm access - tested with system
  • TLMP4: Spare top loading probe, 34 mm access - supplied untested at a later date
  • HE3F: 3He flow meter
  • VIN: Valves in pumping lines

 

Downloads & further Information

 

To download our Kelvinox product guide click here

To download our Kelvinox specification sheet click here

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Product Support

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Help Desk support

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Installation and Service

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System Maintenance, Repair and Upgrades

System Maintenance, Repair and Upgrades

A full repair and maintenance facility is available; our dedicated technicians repair and service hundreds of systems per year.

Dedicated Spares and Accessories

Dedicated Spares and Accessories

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Extended Warranty

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