Measurement of the Scattering Properties of Hydrosols*

John E. Tyler

doi:10.1364/JOSA.51.001289

Journal of the Optical Society of America
Vol. 51,
Issue 11,
pp. 1289-1293
(1961)
•https://doi.org/10.1364/JOSA.51.001289

Measurement of the Scattering Properties of Hydrosols

John E. Tyler

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John E. Tyler, "Measurement of the Scattering Properties of Hydrosols*," J. Opt. Soc. Am. 51, 1289-1293 (1961)

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Abstract

The scattering properties of prepared stable hydrosols have been obtained by two independent methods, by integration of volume-scattering function data, and by direct measurement of the total scattering. The correlation coefficient between the two methods has been determined to be 0.99. Data are given for the total attenuation coefficient, the total-scattering coefficient, the forward- and backward-scattering coefficients, and the volume-scattering function for two samples of water and one prepared hydrosol consisting of 40 cc of skim milk in 600 gallons of water. For the prepared hydrosols a correlation coefficient of 0.999 was found between the total scattering coefficient and the volume-scattering function at 45°. A comparison is made between the present data for distilled water and data published by Hulbert in 1945.

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Column	“Distilled” water A Per meter	Water sample B Per meter	Hydrosol 40 cc/600 gal C Per meter	1945 Hulburt distilled water D Per meter	1941 Dawson and Hulburt theoretical water E Per meter
Total-attenuation coeff	0.047	0.162	0.264	0.04
Total-scattering coeff	0.00457	0.0159	0.137	0.00931	0.00194
Absorption coeff (by difference)	0.0424	0.146	0.127	0.0307
Forward-scattering coeff	0.00396	0.0147	0.112
Backward-scattering coeff	0.00062	0.00118	0.0255
% Forward scattering	86.5	92.5	82.0	86.4	50.0
Volume-scattering function
0°	Interpolated for the computation of total scattering coefficient only.				0.000222
10					0.000219
20	0.00316	0.0125	0.0623		0.000210
30	0.00107	0.00454	0.0330		0.000197
40	0.000520	0.00189	0.0205		0.000180
50	0.000294	0.000883	0.0142		0.000163
60	0.000191	0.000487	0.00982		0.000146
70	0.000128	0.000307	0.00718		0.000133
80	0.000096	0.000228	0.00543		0.000124
90	0.000083	0.000191	0.00448	0.000144	0.000121
100	0.000079	0.000177	0.00408		0.000124
110	0.000082	0.000173	0.00390		0.000133
120	0.000092	0.000179	0.00386		0.000146
130	0.000102	0.000185	0.00403		0.000163
140	0.000112	0.000193	0.00402		0.000180
150	0.000119	0.000204	0.00407		0.000197
160	0.000141	0.000217	0.00421		0.000210
170	0.000161	0.000227	0.00433		0.000219
180	0.000169	0.000230	0.00438		0.000222

Sample	% Forward scattering
Water sample B	92.5
Distilled water A	86.5
A+5 cc skim milk	83.0
10	82.0
20	82.0
40	82.0
80	81.5
80 (stood 12 hr)	83.0
160	81.5
320	81.0
640	81.0

Column	“Distilled” water A Per meter	Water sample B Per meter	Hydrosol 40 cc/600 gal C Per meter	1945 Hulburt distilled water D Per meter	1941 Dawson and Hulburt theoretical water E Per meter
Total-attenuation coeff	0.047	0.162	0.264	0.04
Total-scattering coeff	0.00457	0.0159	0.137	0.00931	0.00194
Absorption coeff (by difference)	0.0424	0.146	0.127	0.0307
Forward-scattering coeff	0.00396	0.0147	0.112
Backward-scattering coeff	0.00062	0.00118	0.0255
% Forward scattering	86.5	92.5	82.0	86.4	50.0
Volume-scattering function
0°	Interpolated for the computation of total scattering coefficient only.				0.000222
10					0.000219
20	0.00316	0.0125	0.0623		0.000210
30	0.00107	0.00454	0.0330		0.000197
40	0.000520	0.00189	0.0205		0.000180
50	0.000294	0.000883	0.0142		0.000163
60	0.000191	0.000487	0.00982		0.000146
70	0.000128	0.000307	0.00718		0.000133
80	0.000096	0.000228	0.00543		0.000124
90	0.000083	0.000191	0.00448	0.000144	0.000121
100	0.000079	0.000177	0.00408		0.000124
110	0.000082	0.000173	0.00390		0.000133
120	0.000092	0.000179	0.00386		0.000146
130	0.000102	0.000185	0.00403		0.000163
140	0.000112	0.000193	0.00402		0.000180
150	0.000119	0.000204	0.00407		0.000197
160	0.000141	0.000217	0.00421		0.000210
170	0.000161	0.000227	0.00433		0.000219
180	0.000169	0.000230	0.00438		0.000222

Sample	% Forward scattering
Water sample B	92.5
Distilled water A	86.5
A+5 cc skim milk	83.0
10	82.0
20	82.0
40	82.0
80	81.5
80 (stood 12 hr)	83.0
160	81.5
320	81.0
640	81.0

Abstract

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Tables (2)

Equations (4)

Journal of the Optical Society of America