Theoretical research on charge exchange of uranum ions at thermal energies

The cross section for resonant charge transfer in U$sup +$-U collisions is calculated as a function of the energy in the center-of-mass coordinate frame. The computed value decreases monotonically from approximately 300 A$sup 2$ at 0.025 eV to 100 A$sup 2$ at 50 eV. The latter value would be appropriate for ions of energy 100 eV moving through a gas of neutral atoms at thermal velocities. (auth