Inertial Electrostatic Confinement (IEC) fusion is a nuclear fusion method developed by Philo T. Farnsworth. An IEC fusor generally consists of a geodesic inner grid charged to a high negative potential inside of a vacuum chamber. The inner grid releases electrons, which are accelerated towards the outer grid (or vacuum chamber) by the voltage potential. These electrons ionize atoms of deuterium (H-2) , which are accelerated towards the inner grid. The inner grid is usually constructed using wire wound into a globe or loop shape, leaving the center of the grid hollow. When the deuterium ions accelerate into the center of the grid, they have a chance of colliding with other ions of deuterium and fusing. The products of deuterium fusion are:
D + D = (50% of the time) 1.01MeV Tritium + 3.02MeV proton
D + D = (50% of the time) 0.82MeV He3 + 2.45 MeV neutron
The neutron produced in the second example is often used as the proof of fusion occurring.
IEC Fusor 