Determination of vertical profiles of aerosol size spectra from aircraft radiative flux measurements: 1. Retrieval of spherical particle size distributions

1981 ◽  
Vol 86 (C10) ◽  
pp. 9783 ◽  
Author(s):  
K. Ya. Kondratyev ◽  
R. M. Welch ◽  
S. K. Cox ◽  
V. S. Grishechkin ◽  
V. A. Ivanov ◽  
...  
Keyword(s):  
Particle Size ◽  
Spherical Particle ◽  
Radiative Flux ◽  
Size Distributions ◽  
Vertical Profiles ◽  
Particle Size Distributions ◽  
Size Spectra ◽  
Flux Measurements

Maximum-entropy method as a routine tool for determination of particle size distributions by small-angle scattering

2004 ◽  
Vol 37 (1) ◽  
pp. 32-39 ◽  
Author(s):  
Dragomir Tatchev ◽  
Rainer Kranold
Keyword(s):  
Particle Size ◽  
Fourier Transform ◽  
Small Angle ◽  
Maximum Entropy Method ◽  
Entropy Method ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Angle Scattering ◽  
The Fourier Transform

Several aspects of the application of the maximum-entropy method (MEM) to the determination of particle size distributions by small-angle scattering (SAS) are discussed. The `historic' version of the MEM produces completely satisfying results. Limiting the data error from below (i.e.imposing a minimal relative error) is proposed as a solution of some convergence problems. The MEM is tested against the Fourier transform technique. The size distribution of Pb particles in an Al–Pb alloy is determined by the MEM and the Fourier transform technique. The size distributions obtained by transmission electron microscopy (TEM) and SAXS show partial agreement.

Sign in / Sign up

Export Citation Format

Share Document