Video aided extinction measurement: A competitive method for dust density diagnostics

Among the most popular methods to measure dust density in a laboratory setup are 1D extinction, Abel inversion for circularly symmetric geometries, and computer tomography (CT) arbitrary geometries. We present new method based on extinction measurement correlation with video taken at an acute angle. It works well limited optical access has good time resolution (at least several hertz). measures within slice of nanodust cloud precision comparable other methods. Depending setup, this aided can replace CT.