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

Ema，祈愿片，在绘画技法和绘画材料的研究领域没有研究过。在艺术史领域，对Ema的研究也很少。从江户晚期到明治时期，由于进口了国外制造的油漆和人工油漆的增加，油漆种类繁多。神道教神社专用的“Ema”从1850年左右开始，颜料开始多样化，色调和颜色也发生了变化。研究这一时期的《Ema》，对于审视明治以来日本绘画的根源和争议点，以及重新评价《Ema》具有重要意义。本研究考察了批量生产的Ema所用涂料在这一时期的变化及其特点。彩色颜料的鉴定通常采用元素分析和光谱分析两种方法。这些方法对于颜料的研究是非常有效的。然而，由于提供的样品非常少，即使是一块Ema也需要相当长的时间来分析。相反，需要分析大量的样品来研究Ema所用颜料的变化及其在这一时期的特征。介绍了彩色闪烁探测器x射线透射测试设备，对分析大量Ema所用颜料是否方便。

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.