80 T Magnet Operational Performance and Design Implications

• Published in: IEEE transactions on applied superconductivity Vol. 18; no. 2; pp. 604 - 607
• Main Authors: Swenson, Charles A., Rickel, Dwight G., Sims, James R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Assembly; Coaxial components; Coils; Coils (windings); Construction; Design engineering; Electrical engineering. Electrical power engineering; Electromagnets; Exact sciences and technology; High magnetic fields; Inserts; Laboratories; magnet design; Magnetic fields; Magnetic materials; Prototypes; pulsed magnetic fields; solenoid magnet; Solenoids; Studies; Superconductivity; Testing; Various equipment and components; Performance evaluation; Autonomous system; Prototype; Magnet; Review; Failures; Field experiment; Learning; magnet design; Solenoid; solenoid magnet; pulsed magnetic fields; Pulsed field; High field; Laboratory test; High magnetic fields; Facility; Magnetic field; Train; Machine windings
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2008.922524

The US National High Magnetic Field Laboratory constructed and tested a stand-alone 80 T prototype magnet. The activity was in support of the insert magnet development project for the US-DOE-NSF 100 Tesla Multi-Pulse Magnet Program. The 80 T magnet assembly was developed to simulate the physical conditions an insert magnet would encounter during peak field operations at 105 T \ldots The design incorporated further improvements to the engineering template developed from the 65 T and 75 T pulsed magnets now in use at the NHMFL Pulsed Field Facility at Los Alamos National Laboratory. Two coaxially nested solenoid coils comprised the 80 T prototype magnet design. The windings are in series electrically. The inner coil is constructed with materials & techniques identical to those in use for the 100 T insert program. The outer coil is a conventional winding. The prototype was successfully trained to a peak field of \sim 80.4 T. 80 T pulsed operations were repeated until the coil assembly faulted after 10 full-field pulses. Post-fault inspection of the magnet assembly indicated that the outer magnet winding failed structurally. This paper will present an overview of the 80 T prototype's design, construction, and performance. A review of the magnets failure mode will be presented. Additionally, we will discuss new design criteria for stand alone high-field pulsed magnet based upon the 80 T prototype experience.