Figure 2
(a) Aerojet droplet source. An inner capillary, a hollow fiber-optic with 50 µm inner diameter, carries the particle solution which is pressurized to 150 PSI. The outer glass capillary carries the focusing CO2 gas at 15 PSI, which expands into vacuum producing a small jet of solution that breaks up into droplets. (b) Flash image (100 ns exposure time) of the untriggered droplets which are unevenly spaced and have a distribution of sizes. (c) Triggered droplets are evenly spaced and have a much narrower size distribution. |