Three-Point-Charge Model for Ternary Fission

Abstract

Trajectories of three point charges are computed two-dimensionally to analyze the experimental data of ternary fission. In the case of a fission accompanied by a long-range alpha particle (LRA fission), the final value of emission angle of the alpha particle is found to depend mainly on the values of the fragment mass ratio and the ratio x , where x = D a (distance between emission point and light fragment)/ D f (distance of two fragments at scission). The final alpha particle energy E A is represented by the equation \begin{aligned} E_{A}=\left(a+\frac{b}{{D_{f}}^{c}}\right)(x-x_{0})^{2}+\left(d+\frac{f}{{D_{f}}^{e}}\right){E_{\alpha}}^{g(D_{f-h})^{1/2}}, \end{aligned} where E α is an initial kinetic energy. The values of parameters a , b , c , d , e , f , g , h and x 0 are determined for some values of the mass ratio and the total kinetic energy in LRA fission of 236 U and 252 Cf. The distributions of E α , D f and the initial total kinetic energy of two fission fragments are obtained for LRA fission of...