The Phenix - a unique low temperature cryostat for powder diffraction
The PheniX is a unique closed cycle helium cryostat specifically designed for powder diffraction at very low temperatures. Our design is easy to set up and facilitates accessibility to the sample stage. The PheniX can be mounted onto a vertical goniometer, and supplied with mounting plates for various powder systems.
Our team of experts is on hand to advise you on the integration of the PheniX with your powder diffractometer.
Features & Tech Specs
The PheniX boasts a range of features including:
- Base temperature of 12K without liquid cryogens.
- Fast cool down time, 20 K in 45 minutes, 12 K in 60 minutes.
- Warm up time of only 40 minutes for fast sample change
- High stability of 0.1 K
- Complete programmability and ability to monitor and control remotely via Cryoconnector software and Oxford Connect
Easy to use and reliable
A two stage Gifford McMahon (GM) closed cycle cooler made by Oxford Cryosystems is mounted within the body of the PheniX and operates using compressed helium gas provided by the Cryodrive compressor. Note that there is no helium gas consumption in this system and the helium gas circuit in the Cryodrive/Coldhead combination is sealed. The sample is cooled by the conduction of heat between the sample stage and the cold stages of the Coldhead, and the PheniX sample temperature is measured at the sample stage. Heat leaks within the PheniX are reduced by a radiation shield incorporating 0.005mm mylar windows, and the robust PheniX lid incorporates X-ray transparent windows of 0.25mm carbon fibre.
A number of 20mm diameter chromium plated copper sample stages are provided with the PheniX system, however different materials may be available at an additional charge. A vacuum system (supplied) is used to continuously pump the vacuum space around the PheniX internals and the rotating seal to minimise unwanted heat leaks into the system.
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