Energy losses of fission fragments and the density effect in gases with different collision frequencies

Abstract

Our calculation of the trajectories of the fission fragments in the experiment of [4] showed that the density effect becomes much weaker when the nonlinear relation between the ion charge and the velocity of the fragments during the stopping process is taken into account. The calculation was based on measurements of the energy losses of fission fragments in air, which were performed in the present work, and modern data on energy losses in argon. The error of the experiment described in the present work is close to 10%. It can be asserted to the same degree of accuracy that the density effect does not influence the energy losses in the experimental pressure range from 300 to 8000 Pa.