Energy density, fission track

FIGURE 4.7 Schematic representation of the energy density in the region of the fission track. The shaded annular region is known as the interaction zone, from which intact molecular species are desorbed. 

Bowden [120] points out that the track widths in explosive crystals are greater than is usually found in inert materials, which indicates that some additional energy could have come from partial decomposition of the material. However, the heat liberated is not enough to produce explosion even when two tracks intersect. The probability of three or more tracks intersecting within 10 sec is small unless the fission-fragment density is high. 

In this relation, a, is the cross section of ionization for 5-electrons Zq is the sum of charge numbers of atoms forming CO2 (Zq = 44) Z and w are the charge number and velocity of a nuclear fission fragment and sg is the energy of a 5-electrom The ionization degree in the plasma channel of a nuclear track is proportional to the square of neutral gas density and pressure numerically, at atmospheric pressure, it is e/ o 3 10 in CO2. 

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