In 2009, Oxford
Instruments not only celebrated 50 years of continuous commitment to science
and innovation but also shipped its 50th Cryofree dilution refrigerator. This
further demonstrates our position as the market leader of Ultra-Low-Temperature
equipment. Cryofree dilution refrigerators allow you to cool samples to temperatures
below 10 mK without the need for liquid helium. Extensive and rapid development
of this new technology with high performance to suit demanding Ultra-Low-temperature
applications has delivered great success. We have received orders for more than
60 systems, with very positive feedback from our customers.
Professor GAO Jie, Member of the Chinese Academy of Engineering, Laboratory
of Mesoscopic and Low-Dimensional Physics, College of Physical Science and Technology,
in Sichuan University, China commented: “Our Cryofree dilution refrigerator
was delivered four months after placing an order. The installation went very
smoothly and the base temperature and cooling power of the insert exceeded the
contract specifications. We are delighted with the level of support we got from
Oxford Instruments division in China and with the performance of the system.
We found that the mechanical and electrical noise levels were very low. We were
able to perform highly sensitive measurements at pA current level with no readily
perceivable interference from the Cryofree dilution refrigerator.”
Cryofree dilution refrigerators can now be integrated with Cryofree magnet
systems with magnetic field (up to 15 T) all within the same cryostat. Having
an integrated system means the system can be run from one single pulse tube
cooler saving on running and maintenance costs and limiting the noise.