Research Article

Development, Characterization, and Application of a Versatile Single Particle Detection Apparatus for Time-Integrated and Time-Resolved Fluorescence Measurements—Part I: Theoretical Considerations

Figure 4

Effect of the operating pressure on particle collimation efficiency for a thin-plate orifice: (a) versus ; (b) versus Stk at mm, mm, and  sccm.
295765.fig.004a
(a)
295765.fig.004b
(b)