Emission probability and kinetic energy of long range alpha particles from even-even ^238-244Pu isotopes

The ternary fission with α particle emission was observed for the first time by Alvarez et al. in ²³⁶U isotope. Most common ternary fission process occurs with the emission of long range alpha particle, in which α particle is emitted in a direction perpendicular to the main fission fragments. The long range emission of α particle is possible only if α cluster is formed inside the fissioning nucleus and should gain enough energy to overcome the Coulomb barrier of the scission nucleus