| Abstract: | Conclusions The charges of fission fragments in a two-group approximation were obtained by means of an experimental apparatus that made it possible to measure the charge of fission fragments by the method of deflection in a magnetic field under the conditions of both a high vacuum and a low-pressure gas and the transition to the state of charge equilibrium in the gas was investigated. The role of the density effect at low pressure was also clarified, and the electron capture cross section of fission fragments on the initial section of a track were estimated. The method developed makes it possible to perform further investigations of the charge states of fission fragments in a gas with the energy of the fragments decreasing along a track without making a priori assumptions about the relation between the ion charges and the velocity of the particles. I thank L. V. Egorova and A. I. Chusov for assisting in this work. This work was supported by the Russian Fund for Fundamental Research, project No. 96-02-17443a. Main Science Center of the Russian Federation — A. I Leipunskii Physics and Power Engineering Institute. Translated from Atomnaya énergiya. Vol. 83. No. 1, pp. 12–17, July, 1997. |
