The large superconducting magnet may be usually cooled down by a large amounts of liquid helium. But its procedure is not considered as the best way for cooling down method.
We have established the direct cooling method for small superconducting magnet by the use of external remote delivery tube.
And by the way for combining the liquefier with the specially designed long transfer tube. We succeeded to cool-down the large saddle-type superconducting magnet.
