【作者】 王晓琪；

【导师】 王丽琴；

【作者基本信息】 西北大学 ， 考古学及博物馆学， 2002， 硕士

【摘要】 光导纤维反射光谱法（简称FORS）是通过测定待测物表面对不同波长光的反射，获取有关物质表层信息的一种光谱分析方法，它能直接对彩绘文物颜料中的显色物质进行无损分析，并且还可以检测有害气体环境下不同颜料的变色情况。 利用自行研制的光导纤维反射分光光度计，我们对重庆大足、长安县临潼王墓以及汉景帝阳陵的部分彩绘文物颜料样品进行了分析鉴定，并同X-射线衍射、X-射线荧光分析方法的分析结果进行比照。结果表明该方法鉴定结果准确、可信，而且操作简单、快速无损，是目前一种新型的文物颜料鉴定方法。 同时选择了常见的十六种纯色及混和颜料作为研究对象；利用光导纤维反射光谱法研究它们在不同浓度的H₂S、NO₂有害气体环境和不同的湿度下的变色情况，通过比较它们的相对反射率—波长以及一阶导数—波长的反射光谱图，找出颜料变色的规律，探讨颜料变色的机理，为彩绘文物保存环境的确立提供科学数据。更多还原

【Abstract】 Fiber optics reflectance spectroscopy (FORS) is a kind of analytical method, which can obtain the information of the material surface layer by the measurement to the light reflectance of the different wavelengths. It is used to identify the pigments on the colored relics and to monitor the changes of color in the harmful gases non-destructively.With our self-developed Fiber Optics Reflectance Spectrophotometer, the pigments on the color relics in Dazu Stone Sculpture Area in Chongqing municipality, in the tomb of King Lintong of the Ming Dynasty in Chang’an County and in Yang mausoleum of the Han Dynasty have been measured and their chromogenic components determined. The comparison between the results of FORS and those of X-ray diffraction analysis and X-ray fluorescence tells that FORS is both simple and reliable and a sort of new method to identify the pigments on the relics.Moreover, the changes of sixteen pure and mixed pigments in H2S, NO2 harmful gases and different humidity have been measured by FORS. By the comparison the peaks’ changes in the reflectance and first derivative spectra of the different pigments, some regular principles of the pigments’ changes have been concluded, the mechanism discussed and the scientific data provided for the establishment of the optimum environment to protect the relics effectively.更多还原