Wood identification of wooden artifacts by means of novel techniques

木材鉴定往往在历史和文化事务的各个方面提供宝贵的信息。到目前为止，最常用的是通过光学显微镜观察来识别形态特征的技术。虽然这是一个简单的过程，但必须具备木材解剖专业知识以及标本制备技能和进一步的经验。此外，例如，来自国宝级的木质物品，这些物品通常是宗教的主题，而不是科学调查的主题。在这种情况下，我们研究了(1)基于同步辐射X射线计算机层析成像(CT)的三维成像，(2)利用木材样品中挥发性有机化合物(VOC)的化学评价，(3)红外、近红外和拉曼区的光谱分类和识别。

Wood identification often provides invaluable information in various aspects of historical and cultural affairs. So far, the technique of discerning the morphological features by optical microscopic observation, is most commonly used.Although it is a simple procedure, expertise of wood anatomy as well as skills in sample preparation and furthermore experiences are prerequisite. In addition, for instance, wooden objects from national treasure class, the objects, are normally the subject of religion and not the subject of scientific investigation. Therefore, novel non-destructive approach is demanded as an alternative to the conventional microsocpic method.In vew of such situations, we have investigated (1) 3D imaging using synchrotron X-ray computed tomography(CT), (2) chemical assessment using emitted volatile organic compound(VOC) from wood sample, (3) spectroscopic classification and discrimination by infra-red, near-infra-red, and Raman regions.