Heavy-ion accelerators for intertial fusion

Summary

A short review of alternative solutions to the supply of energy is given, in the framework of today's requirements by society. The inertial-fusion option is shown to have the potential to satisfy these requirements. The recent «renaissance» of the studies in inertial fusion is noted, but the field should be brought out of its present phase of «experimental stagnation». An overview of the pending questions is presented and the need is stressed for projects aiming to reach ignition. In particular an ion-accelerator-driven project is considered to be a necessary next step for an international collaboration.