New possibilities of commercial RF ion source improvement for nuclear microprobe

The code EFDOI v.2 has been developed to solve a non-stationary 2D (in the velocity space) kinetic equation and used to determine the optimized function distribution of the OI. The distribution is settled in the trap under the following processes: cyclotron absorption of the fast wave at slow mode regime, Coulomb's collisions of the OI with background plasma, birth and death of the ions. The optimized regime and parameters for the modified RF ion source are determined as the results of the calculations.