Velocity of uranium atomic beam produced by electron beam heating

Atomic beam velocities of uranium produced by an electron beam heating were measured by Laser Doppler-shift technique. The electron beam evaporators of the bent beam gun and the axial beam gun were used for comparison of atomic beam velocities. The atomic beam velocity in the bent beam gun was higher than that in the axial beam gun. The excitation and ionization energy of evaporated atoms by energy loss of the incident electron beam was converted to the kinetic energy of atomic beam by atom-atom collision. This is because the rate of the electron impact excitation and ionization of evaporated atoms by the bent electron beam was higher than that of the axial electron beam. (author)