Self-consistent simulation of the motion of ions carried out by a gas jet from a capillary into a radio frequency quadrupole

The paper presents a procedure for transferring calculated spatial distributions of gas-dynamic parameters to the users algorithm of the SIMION 8.1 ion-optical calculation program for self-consistent calculation of ion motion in an electric and gasdynamic fields. The simulation of the capturing an ion beam, emitted out from a capillary with a gas jet, by a radio frequency quadrupole, is carried out as the example of the self-consistent simulation of the ion motion . The efficiency of the ion transportation (in the mass range of 100–2000 a.m.u.) through the area of intermediate pressure in the quadrupole and the efficiency of the ion transmission through the differential pumping diaphragm at the outlet of the quadrupole without applying a longitudinal drawing electrostatic field are shown.