A 60-in.-Diameter, Levitated Super-Conducting Coil Thermally Shielded by Lead
As previously reported [1–3], a 60-in.-diameter superconducting coil is levitated in the FM-1 machine at the Plasma Physics Laboratory, Princeton University. Based on the findings of previous studies [4, 5], a 60-in.-major-, 7.125-in.-minor diameter dewar thermally shielded by lead has been constructed. This dewar increases the isochoric operating time of the superconducting coil from 1.4 to 11.5 hr. The major physical data pertaining to this coil and dewar are shown in Table I.
KeywordsLead Shield Heat Transfer Tube Coil Form Solder Bath Glass Epoxy
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