抄録
Small angle x-ray scattering (SAXS) measurements were performed using BL15XU beamline at SPring8 in order to obtain the size distribution of ethanol-water droplets in mist generated by ultrasonic atomization. The diameter of water droplets was > 100nm which is close to the value predicted by the theory. While, the diameter of ethanol was found to be only 1nm which is 10^<-3> times less than the predicted value. The droplets produced from the ethanol-water mixture of 20mol% are found to be a mixture with diameter of 1nm and 100nm, suggesting that phase separation occurs at the droplet level.
