用多个能量探测方法校正层析γ扫描透射图像重建中射线线衰减系数
Radiation Protection(2008)
Abstract
对采用多个能量探测方法来校正层析γ扫描透射图像重建中射线线衰减系数进行了初步探讨。应用蒙特卡洛方法计算了18种材料在不同能量下的γ射线线衰减系数,并拟合得出当物质材料和密度确定时γ射线的线衰减系数与能量的关系,从而重建出不同能量下的透射图像。
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Key words
Multi-Energy Gamma Rays,Tomographic Gamma Ray Scanning,Linear Attenuation Coefficient,Transmitted Image Reconstruction
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