Migma

Migma was a proposed inertial electrostatic confinement fusion reactor designed by Bogdan Maglich in the early 1970s. Migma uses self-intersecting beams of ions from small particle accelerators to force the ions to fuse. It was an area of some research in the 1970s and early 1980s, but lack of funding precluded further development. Similar systems using larger collections of particles were referred to as "macrons".

Read more about Migma:  Conventional Fusion, Migma Fusion, Migma Drawbacks