The paper analytically discusses two factors, the spectrum of photon and the scattered radiation by the detector, which affect the attenuation efficient of the object in flash X-ray radiography.
研究闪光照相中影响材料有效吸收系数的两个主要因素，即X光的能谱效应和散射影响。
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A computerize system for testing the geometrical performance of grids are developed for fast and precisely controlling medical X-ray grid ability for absorbing scattered ray and its utility effect.