A Random Number Model for Beer's Law - Atom Shadowing

In this model, atoms are considered to have photon-capture cross-sectional areas and to exist in some finite volume. Where by chance one atom lies directly behind another, the first atom is said to cast a shadow on the second, thereby preventing the second atom from participating in the attenuation...

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Veröffentlicht in:Journal of chemical education 1999-01, Vol.76 (1), p.138
1. Verfasser: Daniels, R. Scott
Format: Artikel
Sprache:eng
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Zusammenfassung:In this model, atoms are considered to have photon-capture cross-sectional areas and to exist in some finite volume. Where by chance one atom lies directly behind another, the first atom is said to cast a shadow on the second, thereby preventing the second atom from participating in the attenuation of radiation at that instant. This model not only produces the linear Beer's law relationship, but it also provides a simple and visual model from which the law can be demonstrated with the use of a computer-spreadsheet random number generator.
ISSN:0021-9584
1938-1328
DOI:10.1021/ed076p138