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Small Business Innovation Research/Small Business Tech Transfer

Low Loss Superconducting Magnets Operating at 15 - 40 K

Completed Technology Project

Project Description

Low Loss Superconducting Magnets Operating at 15 - 40 K, Phase I
This proposal responds to the technological challenge of design and manufacture of shielded superconducting magnets generating 3-4 T at temperatures > 15 K. An efficient ADR or AMRR system is likely to be a multistage stage system having magnets operating at different temperatures. Known superconductors that can operate at > 15 K are: 1) YBCO tapes, 2) Bi2223 wires, 3) Bi2212 wires, 4) MgB2 wires, and 5) Nb3Sn wires. Our Phase I project will have the following technical objectives: a) development and testing of high current density low loss Nb3Sn wires, b) study of AC losses of shielded HTS ADR magnets, and c) development of magnet subcomponents with low eddy current losses. We expect our work on high critical current density low AC loss Nb3Sn wires to come to a successful fruition in the Phase I, and expect our Phase II R&D to be entirely dedicated to development of shielded HTS and MgB2 magnets. More »

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