التفاصيل البيبلوغرافية
| العنوان: |
Depolarized Rayleigh scattering in water up to supercritical conditions. |
| المؤلفون: |
Fontana, A., Nardone, M., Ricci, M. A. |
| المصدر: |
Journal of Chemical Physics. 5/8/1995, Vol. 102 Issue 18, p6975. 7p. |
| مصطلحات موضوعية: |
*RAYLEIGH waves, *ATMOSPHERIC temperature, *SUPERCRITICAL fluids, *WATER |
| مستخلص: |
Depolarized Rayleigh spectra of water have been measured as a function of density along several isotherms in both liquid and supercritical phases. At all the thermodynamical states the spectral line shape can be fitted by a Lorentzian line superimposed to an exponential background. The behavior of the fitting parameters shows that at temperatures lower than ∼470 K the temperature is the most relevant parameter in determining the dynamics of the system, whereas above this temperature both temperature and density play a relevant role. Both the line shape and intensity of the spectra can be consistently interpreted in the framework of the first-order dipole induced dipole approximation to the collision-induced light scattering. The data show a clear evidence for cancellation effects. © 1995 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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