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Ice Oxford

ICE Cryogenic Equipment CRYOBITZ Cryogenic Laboratory Spares

DRY ICE 300mK He-3 Cryostat

The DRY ICE 300mK He3 Continuous cryostat is a closed cycle system with the highest cooling powers at 300mK currently on the market. This compact cryostat is customisable to suit your requirements, particularly for large heat load experiments.

The cooler is isolated using flexible bellows to minimise vibration which extends into the cryostat where thermal contact to the rest of the system is obtained by the introduction of exchange gas. There is no mechanical contact to any other part of the system from the cooler.

Using the ICECUBE automatic gas handling system, the flow of gas during cool-down and operation can be controlled.

The system is designed to run continuously at 3He temperatures (below 500mK).


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Temperature range

300mK to 325K

Cooling power

58µW at 315mK, 100µW at 320mK, 500µW at 400mK, 2mW at 450mK

Temperature Stability

±5mK below 1K, ±10mK below 10K,  ±20mK between 10-50, ±50mK between 50-100K, ±100mK for temperatures ≥100K

Sample environment


Sample space

D. 300mm as standard (custom sizes available)

Vibration at sample 

±20 nm with anti-vibration options (pictured)

Cool down time to <500mK

<24 hours 


Air or water cooled options available


Multiple coax lines - DC, RF and fiber optic options available

Optical access 

Multiple windows available (see window materials)

Base temperature


Hold time


Temperature controller

Lakeshore 336 as standard (Other controllers available on request)

Magnetic Field

Solenoid, Split pair and Vector magnets available

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