Проверка уравнения связи в методе двухэнергетической рентгеновской абсорбции для различных пар энергий

Abstract

Determining the density and composition of multilayer material of variable composition is an important task for many industries. For example, in medicine in the diagnosis of osteoporosis, the analysed object is a bone surrounded by fat tissue. In customs control bulk cargo of mixed composition also represents multilayer materials of variable composition. To solve such problems, the methods based on the transmission of X-rays through material (X-ray transmission) are currently used. These methods include X-ray tomography and dual-energy X-ray absorption. However, these methods can give either a qualitative picture of the composition and density of multilayer material in the case of tomography or a quantitative one with a large error due to averaging the results of measurements across all layers, as in the case of dual-energy X-ray absorptiometry.