Παρασκευή, 2 Φεβρουαρίου 2018

Validation of a Monte Carlo code system for grid evaluation with interference effect on Rayleigh scattering

Anti-scatter grids are commonly used in x-ray imaging systems to reduce scatter radiation reaching the image receptor. Anti-scatter grid performance and validation can be simulated through use of Monte Carlo (MC) methods. Our recently reported work has modified existing MC codes resulting in improved performance when simulating x-ray imaging. The aim of this work is to validate the transmission of x-ray photons in grids from the recently reported new MC codes against experimental results and results previously reported in other literature. The results of this work show that the scatter-to-primary ratio (SPR), the transmissions of primary ( T p ), scatter ( T s ), and total ( T t ) radiation determined using this new MC code system have strong agreement with the experimental results and the results reported in the literature. T p , T s , T t , and SPR determined in thi...

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