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。
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.
在高能闪光照相技术中，提高图像接收平面上直穿与散射的比值有利于有效信息的提取。
In high energy flash radiography, enhancing the direct-to-scattered ratio (DSR) in receiving plane is favorable to the derivation of effective information.
针对闪光照相系统成像信噪比低的特点，提出了正则化预优约束共轭梯度算法(RPCCG)。
Based on the constrained conjugate gradient algorithm, a regularization preconditioned constrained conjugate gradient algorithm (RPCCG) was proposed for image-reconstruction for radiography.
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