Performance of First 90 T Insert Magnet for US-DOE 100 T Multi-Shot Pulsed Magnet Program
Swenson, C.A.
Sims, J.R.
Rickel, D.G.
Los Alamos Nat. Lab., Los Alamos, NM;
Abstract
The first phase of the US-DOE 100 T multi-shot pulsed magnet program has now been completed. The initial program goals were a non-destructive millisecond-scale 90 T pulse magnet system to support scientific research in high magnetic fields. Two magnet subsystems comprise the magnet: a nested array of seven generator-driven coils that produce 41.6 T in a 225 mm bore; and a capacitor-driven 15 mm bore "insert" magnet that produces 50.9 T inside the outer coil set. The US-DOE 100 T Multi-shot (MS) Pulsed Magnet Program is collaboration between US-DOE engineering teams at Los Alamos National Laboratory and the US-NSF engineering team at the National High Magnetic Field Laboratory located in Tallahassee Florida. The US-DOE is responsible for the systems integration and the development of the generator driven outer coil set. The US-NSF is responsible for the development and production of the capacitor driven insert magnet. The 90 T MS system is now in the commissioning phase of operations. This paper presents a review of the magnet design, operational performance data, and the developments required for the 50.9 T insert magnet. Technology for the 90 T insert evolved from a series of prototype magnets build to access engineering concepts and materials, and gain experience operating insert-like coils at the same temperature, stress, and strain regime as will ultimately be encountered at 100 T. We will access the performance of the 90 T insert in the context of the prototype development program and the requirements for future 100 T operations on the millisecond time scale.
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