On the light particles in ternary fission

Abstract

The even-Z light particles emitted in ternary fissions having the highest yield in their corresponding elements obey a rule in which their atomic mass Az is given by Az = Az−2 + 4 + 2δz/2,even, where A0 = 0. This rule represents the tendency of ternary light particles to be stable, on the one hand, and to have a high ratio of neutrons to protons, on the other. The odd-Z light particles also behave in a similar systematic way. The even-Z particles of ternary fission are also related to clusters emitted in cluster radioactivity. Of utmost importance is the fact that this systematic behavior of ternary particles may be used to predict the existence of new high-Z ternary particles, which have not yet been reported.

Fragments mass and charge distribution in the light particle accompanied fission of252Cf

“…One of us Z R in [52][53][54] extensively studied the α-decay and cluster-decay processes from different heavy nuclei. In [55,56], Ronen reported the similarity between the clusters obtained in cluster-radioactivity as well as the clusters with high yield obtained in ternary fission.…”

“…On theoretical fronts, using the coplanar three-body cluster model, Sǎndulescu et al [30][31][32][33] calculated the isotopic relative yields for the 4 He, 10 Be and 14 C accompanied ternary fission of 252 Cf and compared with the experimental data. Within the statistical approach, Andreev et al [34] studied the charge distribution of ternary fragments from the spontaneous fission of 252 Cf and from the induced fission of 56 Ni, and obtained a good comparison with the measured data. Recently, Balasubramaniam et al proposed a three-cluster model (TCM) [35][36][37][38] to study the ternary fission of different heavy and superheavy nuclei for various third fragments at two unique geometries, the equatorial and collinear arrangements of fragments.…”

Comparison of Expanded Preequilibrium CEM Model with CEM03.03 and Experimental Data, FY2013

“…For more information, see the recent Ref. [24] wherein Y. Ronen discusses the physics of how light fragments are products seen in ternary fission. However, neither evaporation nor fission processes can produce high-energy fragments, of interest to our current study.…”

Preliminary Results of Investigating Precompound Emission of Light Fragments in Spallation Reactions, Summer 2012

“…For more information, see Ref. [18] wherein Y. Ronen discusses the physics of light fragments produced in ternary fission.…”