where is the fusion power density (energy per time per volume), n is the number density of species A or B (particles per volume), is the product of the collision cross-section σ (which depends on the relative velocity) and the relative velocity v of the two species, averaged over all the particle velocities in the system, is the energy released by a single fusion reaction.
where is the fusion power density (energy per time per volume) n is the number density of species a or b (particles per volume) is the product of the collision cross-section σ (which depends on the relative velocity) and the relative velocity v of the two species averaged over all the particle velocities in the system is the energy released by a single fusion reaction