Simulations of proton beam for ICF propagating in reactor

One of the difficulty of light ion beam fusion is to propagate the beam in the reactor cavity and to focus the beam on the target. To confine the beam in a small radius during propagation, the magnetic field must play a role. Here electron beam is proposed to be launched simultaneously with the launch of proton beam. If the electron beam has the excess current, the beam induces the magnetic field in the negative azimuthal direction, which confines the beam in a small radius by the Lorentz force. The metal guide around the beam path helps the beam confinement, and reduces the total amount of magnetic field energy induced. by the electron current. Simulation shows that the proton beam with the electron beam propagates in a small radius confined in the metal guide.