Application of X-ray Transmission Test with Color Scintillation Detector for Cultural Property (1)

EMA，即念碑，在绘画技法和绘画材料方面的研究还不多见。此外，在艺术史领域对EMA的研究也很少，从江户晚期到明治时期，由于进口了外国涂料，人造涂料增加，绘画种类繁多。EMA专门供奉神道神社，自1850年涂料开始多样化以来，它改变了色调和颜色。对这一时期的EMA进行研究，对于考察明治时期至今日本绘画的根源和争议点，以及对EMA的重新评价具有重要意义。通常通过元素分析和光谱分析对色素进行鉴定。这些方法对于颜料的研究是非常有效的。然而，即使分析一块EMA也需要相当长的时间，因为提供的样本量非常少。相反，有必要对大量的样品进行分析，以研究用于EMA的颜料的变化及其在这一时期的特点。考虑到引入带彩色闪烁探测器的X射线透过率测试装置，是否有利于对大量EMA所用颜料的分析。

Ema, votive tablets, have not studied in the field of research on painting techniques and painting materials. Also, there are few studies of Ema in the field of history of art.Paints diversified in various kinds, since the foreign-made paints were imported and artificial paints increased from the late Edo period through the Meiji period. Ema, which is dedicated to Shinto shrines, changed its color tone and coloration since about 1850 when paints began to diversify. It is significant to study Ema in this period in order to examine the root of Japanese paintings and controversial points from the Meiji period to present as well as to reevaluate Ema.In this study, it was examined that the change of the paints used for mass-produced Ema and its characteristics in the period. The color pigments have been usually identified by elemental analysis and spectrographic analysis. These methods are significantly effective for the study of pigments. However, it takes considerable time to analyze even one piece of Ema because very small amount of samples are provided. On the contrary, it is necessary to analyze a lot of samples to study the change of pigments used for Ema and the characteristics in the period. It is considered if it would facilitate to analyze pigments used for a lot of Ema by introducing the equipment of X-ray transmission test with color scintillation detector.