Research Article

Numerical Simulations and the Design of Magnetic Field-Enhanced Electron Impact Ion Source with Hollow Cylinder Structure

Figure 3

Main composition of the designed EI ionization source. 1: ionization chamber; 2: electron collector; 3: horizontal deflection lens; 4: focus lens; 5: perpendicular deflection lens; 6: slit; 7: horizontal deflection lens; 8: perpendicular deflection lens; 9: cathode filament.