| Abstract: | Spectral variations of the extinction coefficient, the albedo and the asymmetry factor of sodium mist—required for calculations on the radiative heat transfer taking place in the cover gas space of an LMFBR—have been obtained analytically on the basis of Mie's theory. It is found that in the near-infrared region, the extinction coefficient remains almost independent of wavelength, at a level that rises with lowering temperature of the mist; in the same region, the albedo similarly shows little dependence, not only on wavelength but also on temperature. Moreover, with increasing wavelength, the scattering pattern is found to change from forward to backward. |
