Volume versus surface sampling of Maxwellian distributions in nuclear reactions

Publisher Website
Google Scholar
Abstract
The pre-exponential factor in a thermal distribution of classical particles depends on whether the particles have been emitted from the surface of a hot body or are contained in a volume of gas of given temperature. Precisely the appropriate factors describe nuclear evaporation of very low energy neutrons (volume sampling) or moderate energy fragments (surface), as well as the high energy processes of projectile fragmentation and "fireball" breakup (volume).