Analytical and Experimental Study of X-ray Absorption Coefficients of Material by Abel's Inversion

Details Analytical and Experimental Study of X-ray Absorption Coefficients of Material by Abel's Inversion Analytical and Experimental Study of X-ray Absorption Coefficients of Material by Abel's Inversion

2009-01-19

arxiv.org/abs/0901.2885v2

Physics

Condensed Matter

Materials Science

48 pages, 12 figures; Corrected figure captions

Scientific paper

The hard x-ray gamma-ray absorption by cylindrically symmetric U-238 test objects is studied by means of gamma-ray transmission measurements. To make a precise comparison between the theoretically modelled values and the absorption coefficients calculated from the experimental data, we have developed a highly accurate numerical code based on a new solution of Abel's integral equation. It is shown that progressive filtering, surface reflections by Compton scattering, and the enhanced backscattering due to impurities can explain much of the observed discrepancy. We also discuss optimal experimental conditions with regard to the feasibility of quantitative radiography for gamma-ray diagnostics.

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