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Carts create vacuum in Oxfordshire

An Edwards product story
Edited by the Engineeringtalk editorial team Feb 7, 2006

Vacuum turbo carts for the Diamond Light Source synchrotron in Oxfordshire are a bespoke design to create vacuum conditions required by researchers when using the synchrotron light beams at the site.

BOC Edwards has won a contract to supply 14 vacuum turbo carts for the Diamond Light Source synchrotron in Oxfordshire, the largest UK-funded scientific facility for over 30 years.

The carts are a bespoke design based on the firm's TIC turbo cart pumping station and will be used to create vacuum conditions required by researchers when using the synchrotron light beams at the site.

The carts will be used to evacuate and vent the experiment beam lines where light is channelled and used in individual experiments.

By creating a suitable vacuum environment (better than 5 x 10-9 mbar), undesired background components of the atmosphere such as air and water vapour are removed, enabling better interaction between the light beam and the experimental subject under investigation.

Each cart includes a turbomolecular pump, backing pump, gauge and controller.

By combining all these elements within one mobile, plug-and-go unit, researchers can avoid the cost and space requirements of permanent vacuum installations on each individual beam line.

The bespoke design includes handles and lockable castors for portability between experiments.

A compact enclosure lets the unit be wheeled under beam lines or to other locations, as required.

When completed, the synchrotron hopes to host up to 40 research stations, each designed to support a particular research community or technique.

In the first two phases, where the carts will be first deployed, techniques include microfocus spectroscopy, high-resolution powder diffraction and circular dichroism.

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