English: This a picture of different IEC concepts which have been purposed and/or tested. The first was from the paper "On inertial-electrostatic confinement of a plasma" from Physics of Fluids, in 1959. The idea is to generate an electron cloud using a positive wire cage. This, in turn, attracts ions, using an electric field to heat them to fusion conditions. The second concept is from the paper: "Inertial-electrostatic confinement of ionized fusion gases" from 1967 and the patents 3,258,402 and 3,386,883. In this configuration, the ions were injected into an electric field made by two wire cages (a fusor). The last configuration is of a polywell. It is from the thesis "Eletrostatic potential measurements and point cusp theories applied to a low beta polywell fusion device" 2013. In this case, the electric field is generated by a cloud of magnetically confined electrons.

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This a picture of different IEC concepts which have been purposed and/or tested. The first was from the paper "On inertial-electrostatic confinement of a plasma" from Physics of Fluids, in 1959. The idea is to generate an electron cloud using a positive wire cage. This, in turn, attracts ions, using an electric field to heat them to fusion conditions. The second concept is from the paper: "Inertial-electrostatic confinement of ionized fusion gases" from 1967 and the patents 3,258,402 and 3,386,883. In this configuration, the ions were injected into an electric field made by two wire cages (a fusor). The last configuration is of a polywell. It is from the thesis "Eletrostatic potential measurements and point cusp theories applied to a low beta polywell fusion device" 2013. In this case, the electric field is generated by a cloud of magnetically confined electrons.