Research Article
Low Energy Gamma Radiation Induced Effects on Ultrasonic Velocity and Acoustic Parameters in Polyvinylidene Fluoride Solution
Table 4
Variation of density, viscosity, and ultrasonic velocity of 0.5 wt% PVDF solution in dimethylacetamide with dose rate.
| | Dose (mGY) | Density ρ
kg/m3 | Viscosity η Nsm−2
10−3 | Ultrasonic velocity m/s | Compressibility β
10−10 | Intermolecular free path length 10−11 | Acoustic impedance
106 | Relative association | Ultrasonic attenuation 10−14 | Relaxation time 10−13 |
| | 0 | 1116.69 | 1.338 | 1510 | 3.928 | 4.070 | 1.686 | — | 2.748 | 7.004 | | 504.76 | 1117.59 | 1.357 | 1520 | 3.873 | 4.041 | 1.699 | 0.994 | 2.730 | 7.006 | | 673.01 | 1119.32 | 1.377 | 1524 | 3.847 | 4.027 | 1.706 | 0.993 | 2.744 | 7.060 | | 1346.02 | 1121.40 | 1.404 | 1530 | 3.809 | 4.008 | 1.716 | 0.991 | 2.760 | 7.129 | | 1394.02 | 1124.80 | 1.426 | 1534 | 3.778 | 3.99 | 1.725 | 0.992 | 2.774 | 7.183 | | 1514.00 | 1130.20 | 1.478 | 1552 | 3.673 | 3.936 | 1.754 | 0.985 | 2.764 | 7.241 |
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Source: Cs-137. Source strength: 28.042 mGY/hrwt% is 0.5%.
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