Determination of particle size distribution of small aerosol particles of unknown refractive index by a light-scattering method

1978 ◽  
Vol 66 (2) ◽  
pp. 234-239 ◽  
Author(s):  
Yoshiaki Ishizu ◽  
Takashi Okada
Keyword(s):  
Particle Size ◽  
Refractive Index ◽  
Light Scattering ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Aerosol Particles ◽  
Scattering Method ◽  
Small Aerosol

Determination of Particle-Size Distribution and Concentration of Cigarette Smoke by a Light-Scattering Method

1977 ◽  
Vol 9 (3) ◽  
Author(s):  
T. Okada ◽  
Y. Ishizu ◽  
K. Matsunuma
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Cigarette Smoke ◽  
Scattered Light ◽  
Geometric Mean ◽  
Number Concentration ◽  
Scattering Method ◽  
Working Standard

AbstractA new method for determining particle-size distribution of cigarette smoke particles was developed by simultaneous measurement of scattered light at three angles for a fixed wavelength. A theoretical chart useful for this purpose, which was made of the relative intensities of scattered light at the angles 45° and 135° to that at the angle 90°, was calculated on the basis of the Mie theory. The number concentration was determined from the Rayleigh ratio using the working standard method. The measurements were rapidly performed, without change of particle size during measuring time, with a device for dilution. The geometric mean diameter, the logarithmic standard deviation and the number concentration of mainstream smoke were found to be about 0.18 um, 0.4 and 3 X 10

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