I. Introduction
The goal of fusion research is to derive energy from fusion of light atomic nuclei. In the process a helium nucleus is produced, this being accompanied by release of a neutron and large quantities of useful energy [1], [2]. The raw materials needed to operate a fusion reactor; deuterium and lithium are available in practically unlimited quantities uniformly distributed throughout the world. Seawater contains deuterium in almost inexhaustible quantities. Tritium, a radioactive gas, hardly occurs in nature. It can, however, be formed in a power plant from lithium, which is likewise abundantly available. Since, moreover, a fusion power plant will have ecologically favorable properties, fusion could make an enduring contribution to future energy supply. The successful development of nuclear fusion for generating power should provide an almost limitless source of energy for future generations.