The mass density normalized absorption and total scattering coefficients have been measured using in situ
techniques at selected wavelengths from the visible to 1 cm for soot generated by the open combustion of
diesel fuel. Particle morphologies are complex although similar to those of soots of other hydrocarbons and
methods of generation. An ellipsoidal model has been applied as an approximation to the often multiconnected,
chainlike aerosol and then compared with the measured results. The experimental results show an
approximate (lambda)-1 dependence over more than five decades of wavelength data. There is only general
agreement with the simplified calculations in this feature as well as in the magnitude.
White Sands Missile Range, U.S. Army Atmos. Sci. Lab., Las Cruces,