The IceCube 17L is equipped with the CRYOSUPERIOR Technology and represents the largest chamber volume available. Using parallel flow technology the air/gas exchange is carried out in a large scale circulating motion and the return takes place in the isolated outer area of the cooling chamber
As a member of the large-scale series, the IceCube 17L achieves parallel and cross sectional replacement of gas volume across the whole chamber to give a uniform temperature profile. The gas flow in the instrument has been engineered to ensure a homogeneous temperature distribution throughout the chamber.
Tightly controlled injectors meter the liquid nitrogen addition according to the temperature difference between the set-point and the actual reading.