Mathematical modeling of radiation transparencies in the countable implementation of the dual energy method based on analog amplitude analysis of original signals

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A mathematical model of radiation transparency in the computational implementation of the dual energy method based on analog discrimination of the original signals is given. The generalized mathematical model of radiation transparency in the analyzed implementation of the dual energy method is based on the analog separation of the initial electrical signals from the X-ray detector by amplitude into low-energy and high-energy signals with subsequent counting of these signals. Analog separation of the output signals of the X-ray detector by amplitude is carried out using a two-channel amplitude analyzer. The proposed model takes into account the maximum energy of X-ray photons, the energy threshold for separating signals into low-energy and high-energy signals, materials and sizes of radiation-sensitive detector elements, and parameters of control objects. The model can be used to conduct research on the influence of noise caused by the quantum nature of X-ray radiation on the quality of identification of the attenuating material, for example, by effective atomic number, in relation to the considered implementation of the dual energy method, as well as for a reasonable choice of parameters of the corresponding dual-energy digital radiography systems and X-ray computed tomography.

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Sobre autores

V. Udod

National Research Tomsk State University

Autor responsável pela correspondência
Email: pr.udod@mail.ru
Rússia, Lenin Ave., 36, 634050, Tomsk

S. Vorobeychikov

National Research Tomsk State University

Email: sev@mail.tsu.ru
Rússia, Lenin Ave., 36, 634050, Tomsk

S. Osipov

National Research Tomsk Polytechnic University

Email: osip1809@rambler.ru
Rússia, Lenina Ave., 30, 634050, Tomsk

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