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Studies of x‐ray energy absorption and quantum noise properties of x‐ray screens by use of Monte Carlo simulation
Author(s) -
Chan HeangPing,
Doi Kunio
Publication year - 1984
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595474
Subject(s) - phosphor , monte carlo method , absorption (acoustics) , photon , optics , attenuation coefficient , physics , computational physics , materials science , scattering , optoelectronics , statistics , mathematics
The imaging properties of the phosphor layer in fluorescent screens or image intensifiers are related to its x‐ray absorption characteristics. In this study, we applied Monte Carlo methods for the simulation of x‐ray photon diffusion in a phosphor layer. The K ‐reabsorption factor, absorbed x‐ray energy, quantum absorption efficiency, statistical factor, and noise‐equivalent absorption were determined as a function of the incident energy and angle of the x rays for eight commonly used phosphor layers. These basic physical quantities will be useful for the prediction of the information transfer properties of a phosphor layer.