superfluid helium
4.The second stage alpha magnetic spectrometer AM2-02 is the first large magnetic spectrometer that will be lunched to the space,the cryogenic ground support equipment(CGSE) is used to cool down the AMS02 magnet and fill superfluid helium into the magnetic Dewar of AMS-02.The design,manufacture and test of CGSE will be designed,manufactured,tested in China.
