文献类型：期刊文献

中文题名：人造板剖面密度检测所用X射线能量的探讨

英文题名：Discussion on x-ray energy in measuring vertical density profile of wood-based panel

作者：尹大勇[1] 潘斌[1] 程放[1]

第一作者：尹大勇

机构：[1]中国林业科学研究院木材工业研究所

年份：2008

期号：6

起止页码：1-5

中文期刊名：木材加工机械

外文期刊名：Wood Processing Machinery

基金：中央级公益性科研院所基本科研业务费专项资金(CAFINT2007K03)

语种：中文

中文关键词：人造板;剖面密度;质量衰减系数;X射线吸收法

外文关键词：wood-based panel; vertical density profile; mass attenuation coefficient; x-ray absorptiometry;

分类号：TS653

摘要：通过计算分析刨花板对20～100keV的X射线的质量衰减系数得出,用X射线吸收法检测密度在0.4～0.9g/cm3之间、长宽尺寸为50mm×50mm的人造板试件的剖面密度时,射线能量在20～50keV之间时可获得最佳的检测灵敏度;含水率和树种这两个因素对质量衰减系数影响极显著;当射线能量在20～40keV之间时,施胶量的影响由极显著变为显著,当射线能量达到50keV时,施胶量的影响已不显著。
The mass attenuation coefficients of particleboards were analysed when they were penetrated by x-rays of 20～100keV using x-ray absorptiometry,if x-ray among 20～50keV was used in measuring the vertical density profile of wood-based panel samples,whose density was among 0.4～0.9g/cm3 and dimension was 50mm×50mm,the best sensitivity would be got,and the effect of the two factors-moisture content and wood species of the panel on the mass attenuation coefficient were both extremely significant;if x-ray among 20～4...