Interaction of neutrons at high energies

Abstract

This paper presents some novel interpretations of fusion plasmas which may be of interest to both fission and fusion scientists and engineers. A new fusion ignition parameter (Tn e r E )i is proposed which is proportional to 0 2 B 4 and inversely proportional to the fusion power density (PFusion) °f a reacting plasma. Curves are given for many potential nuclear fusion fuels. The energy utilization factor in existing devices is defined as f = PFusion/PLoss = (Tn e TL)/(Tn e TE)i; in experimental plasmas, f has increased by about two orders of magnitude in the past decade and now exceeds 10" 4 (a "nearest" f* exceeds 10~3). The f factor is also analogous to its fission counterpart in the four-factor neutron multiplication factor k = f rj e p, where f is the neutron thermal utilization factor. Past, present, and future fusion experiments are discussed briefly in this context.

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