Theoretical Aspects of the Determination of Particle-Size Distributions from Measurements of Scattered Light Intensity.
Abstract
The technique of determining the distribution of particle sizes in a cloud by measuring the intensity of the light scattered from it over a range of angles (sometimes known as the 'small angles' method) is discussed and the feasibility of the method demonstrated with the aid of digital computer calculations. The effect of experimental errors is considered and a detailed examination made of the special difficulties associated with monodispersions, in which all particles are of the same size. It is shown that in both cases modification of the experimental data by means of suitable weighting functions yields enhanced reconstruction of the original distribution function. The limitations of the small angles method are discussed, together with the data requirements which should be met if good results are to be achieved. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1970
- Accession Number
- AD0721089
Entities
People
- J. B. Abbiss
Organizations
- Royal Aircraft Establishment