Figure 3
The optimized ALS geometry. Tube and aperture radii are specified above the device and the corresponding nitrogen-gas flow field for the injection of 50 nm AuNPs at 13 mg min−1 mass flow is depicted in false color. Representative (calculated) particle trajectories are shown by black lines, with gas- and particle-flow direction from left to right. A clear focusing effect of the different parts of the ALS can be observed through the radial narrowing of the set of particle trajectories. |