Formatting error, last paragraph: To produce thrust - what if it was a half sphere somehow? Propellant implies ejection of something, and a fusion reaction bal

Formatting error, last paragraph: To produce thrust - what if it was a half sphere somehow? Propellant implies ejection of something, and a fusion reaction ball is magnetically interactive, with no radioactive material byproduct? What if a fusion thruster harvested some energy from the reaction to "push" back against an actively fusing pellet feed rate? Could this propel a craft or am I missing something fundamental here?