A Monte Carlo treatment of particle-size effects in gauging and control by gamma-ray absorptiometry in hydraulic transport systems
✍ Scribed by R.A.M. Rizk
- Publisher
- Elsevier Science
- Year
- 1989
- Weight
- 367 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0883-2889
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✦ Synopsis
The widespread use of ),-ray absorptiometry in non-destructive assay of opaque materials is well established. Analytical treatment of particle-size effects in materials with several coarse-grained components requires a theory based on complicated multinomial distributions. As a consequence, no closed expressions can be derived. In this paper, a Monte Carlo model for 7-ray absorptiometry in mixtures with multiple coarse-grained materials is developed. The model calculations are based on an entirely non-analog simulation procedure for 7-ray transport. The weighing factors for forced photon penetration of the different component materials are estimated, and a suitable correction function for particle-size effects is derived. An application on to some specific analysis problems where the model could possibly be used to good advantage has been demonstrated.