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Planck’s cooling system (at 4 degrees Kelvin)
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- Title Planck’s cooling system (at 4 degrees Kelvin)
- Released 27/02/2009 7:38 pm
- Copyright ESA (image by AOES Medialab)
To achieve the mission goals, the Planck instruments – the Low Frequency Instrument (LFI) and the High Frequency Instrument (HFI) - will operate at a few degrees above absolute zero. To achieve this, a series of cooling stages are required.
The picture shows the second cooling stage which brings the temperature inside HFI down to 4K.