Heavy ion beam transport and focusing with an insulator guide in inertial confinement fusion

One of the key issues on the heavy ion beam inertial confinement fusion is an efficient transport and beam focusing. To get a fine focusing on the fuel pellet, neutralization of the space change of an incident beam is required. The space charge of beam has to be neutralized for the fine focusing. In this paper, we propose to employ an insulator tube guide, through which a heavy ion beam is transported and focused. We confirm that the beam space charge is effectively neutralized by electrons emitted from the insulator beam guide and the ion beam fine focusing is realized. This result shows a possibility of a good beam focusing by the insulator beam guide. (author)