1967. The ALICE (Adiabatic Low-Energy Injection and Capture Experiment) experiment—and its successors, Baseball I and Baseball II—aimed to find out if hot plasma could be created and sustained by injecting a neutral beam into a magnetic well. It was possible to create a magnetic well by properly shaping the mirror’s magnetic field. In the 1960s, Lawrence Livermore Laboratory (now Lawrence Livermore National Laboratory) pioneered new and improved magnetic well configurations that involved a coil shaped like a baseball seam. The experiments were successful in demonstrating the idea at low plasma density. However, at higher densities, high-frequency instabilities allowed the plasma to escape. This issue was a central focus of further experiments.
by Gary J. Weisel
Fusion: Science, Politics and the Invention of a New Energy Source by Joan Lisa Bromberg