AMS Radiocarbon Dating of Ancient Japanese Documents, Sutras, Calligraphy and Printed Books of Known Age(Proceedings of the 15^<th> Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2002)


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  • 加速器質量分析法による歴史時代資料の放射性炭素年代測定 : 古文書・古経典・古筆切・版本の測定結果から(第15回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成14(2002)年度)報告)

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History is a reconstruction of past human activity through evidences of which are preserved in the form of documents or relics. Ancient documents are indispensable for historic studies, and in particular the dates of writing them are essential for the reconstruction of human activities. The purpose of dating on historical or archaeological materials besides ancient documents is to pursuit the historical age when they had been used as tools. Although radiocarbon age is converted into calendar age with the calibration curve, the calibrated radiocarbon age is still different from the historical age. The discrepancy becomes more serious problem for recent sample which requires more accurate age determination. Therefore, in this study, we have measured radiocarbon ages of Japanese ancient documents, sutras, calligraphy and printed books written dates of which are clarified from the paleographic standpoint. The purpose of this study is to clarify the relation between calibrated radiocarbon age and historical age of ancient Japanese document by AMS radiocarbon dating. This paper reports 29 radiocarbon ages of ancient Japanese paper samples. The calibrated radiocarbon ages are in good agreement with the corresponding historical ages. It was shown by radiocarbon dating on the ancient Japanese paper samples of known age that ancient Japanese paper is a suitable sample for radiocarbon dating of recent historic period because of small discrepancy between the calibrated radiocarbon age and the historical age



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