Half cell 'SSC' 40 mm aperture magnet string

An attempt was made to verify that SSC (Superconducting Super Collider) magnets (dipoles) can be installed, leak checked, cooled to LHe temperature, energized, and quenched as a string in a tunnel type environment. The data given here were obtained during a controls and system check-out run. This run basically had all of the proper accelerator controls as well as, in the background, an independent magnet test facility monitor and protection. Early data are presented on the heat loads of some circuits and quench performance of the two magnet strings used. The heat loads found were high and the quench performance appeared to be better than expected. After disassembly occurred, obvious causes were present for some of the heat load.<
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