Large high-field spaceborne experimental magnet systems: design considerations

Summary form only given, as follows. Several programs that will place large, high-intensity magnets in low Earth orbit are being planned. However, large high-field magnets have yet to be operated in space, and possible environmental plasma effects of these magnets are open issues. The authors have investigated design constraints for normal, superconducting, and permanent magnets from the perspective of possible precursor experiments appropriate for various space missions. For the magnetic field, the order (dipole, quadrupole) orientation with respect to Earth field and spacecraft, field intensity and pulse shape has been examined with respect to its impact on the spacecraft design, mission profile, and ground operation. Parametric optimization of the magnet system (cost, weight, size, power intensity, and pulse shape flexibility) has been carried out, and achievable performance for the various magnetic systems and mission options has been estimated. The practicality of rapidly pulsed magnets has been considered.<>