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Back Transfer of liquid helium to dewars

Transfer of liquid helium to dewars


Date: 25 February 2009
Satellite: Herschel
Depicts: Top of dewar with valves and connection points
Location: Centre Spatial Guyanais, Kourou, French Guiana
Copyright: ESA

Liquid helium is being transferred from large containers (30 000 litres capacity) to smaller dewars (~450 litres capacity).

Evaporating helium from the filling process causes the humidity in the air to condense on the surface of the dewar (white ice patches).

Last Update: 1 September 2019
15-Feb-2026 13:24 UT

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