Novel fusion energy conversion methods

The potential importance of direct energy conversion to the long-term development of fusion power is discussed with emphasis on the possibility of alleviating waste heat problems. This is envisioned to be important for any central power station in the 21st century and crucial for future space applications. Various novel conversion methods are briefly considered, including direct collection, magnetic expansion, synchrotron radiation conversion, and nonthermal neutron energy conversion methods. Due to the intimate connection between the type of fusion fuel, the confinement scheme, and the energy conversion technique, all three elements must be optimized simultaneously for high overall efficiency. (orig.)