Polywell
Fusion reactor design / From Wikipedia, the free encyclopedia
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The polywell is a proposed design for a fusion reactor using an electric and magnetic field to heat ions to fusion conditions.
The design is related to the fusor, the high beta fusion reactor, the magnetic mirror, and the biconic cusp. A set of electromagnets generates a magnetic field that traps electrons. This creates a negative voltage, which attracts positive ions. As the ions accelerate towards the negative center, their kinetic energy rises. Ions that collide at high enough energies can fuse.