Analysis of the effects of depth dependence of x-ray interactions on the MTF and NPS of radiographic screens

Richard L. Van Metter; Majid Rabbani

doi:10.1117/12.18804

1 July 1990 Analysis of the effects of depth dependence of x-ray interactions on the MTF and NPS of radiographic screens

Richard L. Van Metter, Majid Rabbani

Author Affiliations +

Proceedings Volume 1231, Medical Imaging IV: Image Formation; (1990) https://doi.org/10.1117/12.18804
Event: Medical Imaging '90, 1990, Newport Beach, CA, United States

Abstract

In our previous studies,"2 we had shown the utility of multivariate momentgenerating functions (MMGF) for analyzing the influence of stochastic amplifying and scattering mechanisms on the transfer of signal and noise through multistage imaging systems. Recently, we extended these studies to include cases in which the amplification or scattering parameters are themselves stochastic variables.3 In this paper we consider a special case in which amplification is followed by scattering such that the same random variable which characterizes the parameters of each amplification process also characterizes the parameters of the subsequent scattering of the amplified output events. In radiographic imaging, this can be used to describe the physics of the depth dependence of emission efficiency and light scatter in x-ray intensifying screens which was originally treated by Lubberts.4 In this work Lubberts' original results are rederived in a more general form.

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Richard L. Van Metter and Majid Rabbani "Analysis of the effects of depth dependence of x-ray interactions on the MTF and NPS of radiographic screens", Proc. SPIE 1231, Medical Imaging IV: Image Formation, (1 July 1990); https://doi.org/10.1117/12.18804

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