Desktop Cooler

The DTC has been designed for crystallographers looking for simple uncomplicated sample cooling at temperatures down to 170 Kelvin.

The compact DTC refrigerator unit incorporates a mechanical stirling cooler which cools compressed dry air (or nitrogen gas if required) to temperatures ranging from 170- 300 Kelvin.
The vacuum space within the unit is continually evacuated via a 2-stage rotary pump. This cool gas is then delivered to the sample via a vacuum insulated transfer line and delivery nozzle. The dimensions of this nozzle are the same as the Cryostream, meaning the Varibeam support stand can still be used to support and position the gas delivery head if required.
The unit also delivers a second stream of dry air (or nitrogen gas if preferred) at room temperature which acts as the shield gas, preventing icing of the sample.

The Desktop Cooler consists of:

• DTC unit incorporating mechanical Stirling cooler, fitted with flexible transfer line and delivery nozzle
• 2-stage rotary pump
• Power supply

The DTC requires a feed of dry air or dry nitrogen gas. Many labs have access to a piped-in dry air or nitrogen supply which can be used directly by the DTC. If dry air is not available however, Oxford Cryosystems can supply the AD51 dry air unit which has been used with the Cryostream for many years.