Raman spectroscopy with multiple-lasers for archaeological objects

用于考古物体的多激光拉曼光谱

• 批准号: 15300299
• 负责人: KOHDZUMA Yohsei
• 金额: $ 8万
• 依托单位: Independent Administrative Institution National Research Institute for Cultural Properties, Nara.
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15300299/
• 关键词: multiple lasers; Raman spectroscopy; non-destructive analysis; mobile equipment; excitation laser; material analysis; Raman spectrum; spectra libraly

The purposes of this research were development of laser Raman spectroscopy applied to archaeological objects and making a Raman spectrum library of archaeological materials.When irradiating the laser onto an object, Raman scattering may be obscured by the fluorescence that a sample produces. Moreover, the sample itself may absorb excitation laser, considerably reducing the efficiency of Raman scattering. Whatever the case may be, selecting the suitable excitation laser for the sample ensures a favorable spectrum. A trial equipment of laser Raman spectroscope was produced in 2004. Some defects of this trial one were conquered. As the results of this modification, portability and a part of spectroscope were unproved. In the last year, 2005, several problems, e.g., power of laser, rotation part of spectroscope, power supply, and so on, of this trial equipment were examined, a final equipment was obtained. By this improvement, a mobile laser Raman spectroscope with two lasers, i.e., 532 nm and 785 nm, has been completed for archaeological objects.With this mobile equipment and existing equipments of our laboratory, Raman spectra of standard samples and archaeological materials have been determined. These Raman spectra have been stored in a database file with use of commercial software. It is significant that laser Raman spectroscopy has become to as a quick analysis on-site.

本研究的目的是发展激光拉曼光谱在考古材料中的应用，建立考古材料的拉曼光谱库。当激光照射到物体上时，拉曼散射可能会被样品产生的荧光所掩盖。此外，样品本身可能吸收激发激光，从而显著降低了拉曼散射的效率。无论是何种情况，为样品选择合适的激发激光都能确保获得良好的光谱。2004年研制成功激光拉曼光谱仪的实验装置。克服了试验方案的一些缺陷。改进的结果是提高了仪器的便携性和部分分光镜的性能。在去年，2005年，几个问题，例如，对该试验装置的激光功率、分光镜旋转部分、电源等进行了测试，得到了最终装置。通过这一改进，研制出了一种具有两个激光器的移动的激光拉曼光谱仪，利用该移动的装置和实验室现有的设备，对标准样品和考古材料的拉曼光谱进行了测量。这些拉曼光谱已经使用商业软件存储在数据库文件中。激光拉曼光谱作为一种现场快速分析手段具有重要意义。

项目成果

考古遺物資料の非破壊分析-レーザー・ラマン分光法-

考古文物的无损分析 - 激光拉曼光谱 -

• 发表时间: 2004
• 期刊: 第28回 文化財の保存および修復に関する国際研究集会 文化財の非破壊調査法 - X線分析の最前線 -予講集
• 作者: 高妻洋成;肥塚隆保
• 通讯作者: 肥塚隆保

Non-destructive analysis of Archaeological Objects by Laser Raman Spectroscopy

激光拉曼光谱对考古物体进行无损分析

• 发表时间: 2005
• 期刊: Preprint of the 22nd Annual Meeting of Japanese Society for Scientific Studies on Cultural Property
• 作者: Yohsei Kohdzuma;Soichiro Wakiya;Junko Furihata;Takayasu Koezuka
• 通讯作者: Takayasu Koezuka

レーザーラマン分光分析法による考古資料の非破壊的調査

使用激光拉曼光谱对考古材料进行无损研究

• 发表时间: 2005
• 期刊: 日本文化財科学会第22回大会研究発表要旨集
• 作者: 高妻洋成;脇谷草一郎;降幡順子;肥塚隆保
• 通讯作者: 肥塚隆保

携帯型マルチレーザーラマン分光分析装置の開発と応用

便携式多激光拉曼光谱仪的研制与应用

• 发表时间: 2005
• 期刊: 奈良文化財研究所紀要
• 作者: 高妻洋成;降幡順子;肥塚隆保
• 通讯作者: 肥塚隆保

高妻洋成, 肥塚隆保, 沢田正昭, 杜曉帆, 杜曉黎: "中国・大召寺壁画の非破壊分析"文化財保存修復学会第25回大会研究発表要旨集. 24-25 (2003)

Hironari Takatsuma、Takayasu Hizuka、Masaaki Sawada、杜晓凡、杜晓丽：《中国大周寺壁画的无损分析》第25届文化财产保护与修复学会会议研究报告摘要集24-。 25 (2003)