Superconducting magnet system and a cryogenic equipment of molecular tritium circulation source for electron antineutrino mass experiment

The design, construction and testing results of the superconducting magnet system for a molecular tritium circulation source are presented. The system is used for electron antineutrino mass measuring experiments by tritium /spl beta/-decay spectrum analysis. There are 13 superconducting tritium source solenoids, as well as 4 spectrometer magnets cooled by a two-phase helium mixture circulating through a 100 watt refrigerator. The temperature of the magnets is 4.5 to 4.8 K at 0.6 to 0.7 torr. The total cold mass is about 600 kg.<
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