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![[Figure 4]](te5083fig4mag.jpg)
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Figure 4
(a) Particle-beam evolution curves of the optimized injector for 50 nm AuNPs at different gas-mass flows. The width of the particle beam was determined as d70. With increasing mass flow and thus pressure before the ALS, the particle-beam focus becomes harder, i.e. it moves closer to the ALS exit and gets smaller. (b) Particle-beam evolution curves of the optimized injector for different AuNP sizes at 13 mg min−1 mass flow. With increasing particle size, the particle-beam focus decreases and moves further away from the ALS. The convergence increases with decreasing particle size. |
![[Figure 4]](te5083fig4.jpg)
 | JOURNAL OF APPLIED CRYSTALLOGRAPHY |
ISSN: 1600-5767
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