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A team at Lund University observed and quantified an atomizing spray by recording x-ray absorption while using two-photon laser-induced fluorescence imaging. High-contrast fluorescence images provided fine details of the spray structure and minimized blur from multiple light scattering, while x-ray radiographs quantified how the liquid was distributed. Sprays like those used for liquid fuel combustion in vehicle, ship, and plane engines can be difficult to visualize with normal light because they consist of thousands of small droplets that scatter light in all directions.
The amount of liquid present in a spray can be measured by detecting the amount of x-ray radiation transmitted through it. However, this approach usually requires…READ MORE