|Ports (optics/electrical feedthroughs)||Two on the side of the cryostat|
|Port clear aperture||20 mm (150 K gas cooled radiation shield limit)|
|Electrical connector (standard)||10 pin low-voltage electrical connector|
|Optic axis height||20 mm|
|(Helium temperature) cold plate diameter||100 mm|
|Liquid helium capacity||1.0 litres|
|Liquid helium hold-time, first fill||5 to 10 hours *|
|Hold time, subsequent fill||8 to 16 hours *|
|Lifting handle diameter||190 mm|
|Cryostat height||392 mm|
|Mass (empty)||7.3 kg|
This small single Dewar cryostat is designed with convenience and reduced cost in mind. The cryostat is intended for daily use. Readying the cryostat for operation i.e. evacuating and cooling to liquid helium temperature, should take about ninety minutes after which it will provide several hours operation at this temperature, subject to operating conditions.
The cryostat can be kept cold overnight by refilling the Dewar with liquid helium in the evening and refilling again first thing in the morning, though this might require a late finish and prompt start.