Efficient method for extracting plasma ions in laser isotope separation systems

One studied the application of the Hall accelerator for ion extraction from partially ionized plasma generated via isotopically selective photoionization of atomic vapors by laser radiation. On the basis of two-liquid magnetic hydrodynamics one studied mechanism of ion acceleration. To prevent cut-off by an ion space charge one uses electron emission. At 25-50 V accelerating voltage and several milli ampere emission current density through square centimeter the ion component is shown to be accelerated within the whole volume of plasma within a few seconds up to ∼ 105 cm/c speed. One took account of the effect of resonant recharging and secondary ionization by electrons on the dynamics of acceleration and on the selectivity loss