Pulsed-coil magnet systems for applying 10-30 Tesla Fields to cm-scale targets on Sandia's Z facility

• Published in: Review of scientific instruments 2014-12, Vol.85 (12)
• Main Authors: Rovang, Dean C., Lamppa, Derek C., Cuneo, Michael Edward, Owen, Albert, Mckenney, John, Johnson, Drew, Radovich, Shawn, Kaye, Ronald J., McBride, Ryan D, Alexander, C. Scott, Awe, Thomas James, Slutz, Stephen A., Sefkow, Adam B, Haill, Thomas A., Jones, Peter Andrew, Argo, Jeffrey W, Dalton, Devon, Robertson, Grafton Kincannon, Waisman, Eduardo Mario, Sinars, Daniel Brian, Meissner, Joel, Milhous, Mark, Nguyen, Doan, Mielke, Chuck
• Format: Article
• Language: English
• Subjects: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
• ISSN: 0034-6748; 1089-7623

We have successfully integrated the capability to apply uniform, high magnetic fields (10–30 T) to high energy density experiments on the Z facility. This system uses an 8-mF, 15-kV capacitor bank to drive large-bore (5 cm diameter), high-inductance (1–3 mH) multi-turn, multi-layer electromagnets that slowly magnetize the conductive targets used on Z over several milliseconds (time to peak field of 2–7 ms). This system was commissioned in February 2013 and has been used successfully to magnetize more than 30 experiments up to 10 T that have produced exciting and surprising physics results. These experiments used split-magnet topologies to maintain diagnostic lines of sight to the target. We then describe the design, integration, and operation of the pulsed coil system into the challenging and harsh environment of the Z Machine. We also describe our plans and designs for achieving fields up to 20 T with a reduced-gap split-magnet configuration, and up to 30 T with a solid magnet configuration in pursuit of the Magnetized Liner Inertial Fusion concept.