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用直接X射线法测定木材微密度
THE DETERMINATION OF WOOD DENSITY USING DIRECT SCANNING WITH X-RAYS
【摘要】 文章以原子物理学中的射线衰减方程为基础,用直接X射线方法,采用三种不同能量的X射线源,对红松、杨树、桦树、水曲柳、高山栎五种树木样品进行了质量衰减系数和微密度的测定。结果表明:该方法是可行的,测定精度也是较高的。
【Abstract】 The variation of the wood density is studied by using the method of directscanning with X-rays, based on the rays attenuation equation of atomic physics.The mass attenuation coefficient and the density variation are determined forsamples of five kinds of tree using X-rays of 5.9, 8.04, and 16.31 keVrespectively.
【关键词】 直接X射线法;
木材微密度;
密度变异;
质量衰减系数;
【Key words】 Direct X-ray method; Wood density variation; Wood microdensity; Mass attenuation coefficient;
【Key words】 Direct X-ray method; Wood density variation; Wood microdensity; Mass attenuation coefficient;
【基金】 中国原子能科学研究院青年基金
- 【文献出处】 原子能科学技术 ,Atomic Energy Science and Technology , 编辑部邮箱 ,1991年04期
- 【被引频次】3
- 【下载频次】80