Hybrid confinement scheme operating at high beta. Plasma migrating to the outer sheath is temporarily mirror-confined before being removed in a divertor system. A modification of the stellarator concept, the torsatron has a toroidal non-axisymmetric configuration, and rotational transform is provided by external coils. Ratio of the radiant power transmitted by an object to the incident radiant power. Transformation of atoms of one element into atoms of another element via nuclear reactions.
Diffusion partly determines the rate of transport.
See also banana orbit. A radioactive isotope of hydrogen with one proton and two neutrons in its nucleus and one orbiting electron. The amount of tritium generated by the breeding blanket of a D-T fusion reactor, divided by the amount of tritium burned in the reactor. A tritium breeding ration greater than unity is necessary for self-sufficient fueling. A stream of energetic electrons passing through a cold plasma can, for example, excite ion waves which will grow rapidly in magnitude at the expense of the kinetic energy of the electrons.