@article{oai:nagoya.repo.nii.ac.jp:00011702, author = {中村, 俊夫 and Nakamura, Toshio and 太田, 友子 and Ohta, Tomoko and 浅田, 梨詠 and Asada, Rie and 丹生, 越子 and Niu, Etsuko}, journal = {名古屋大学加速器質量分析計業績報告書}, month = {Mar}, note = {^<14>C variations of atmospheric CO_2 and collagen fractions from human teeth are influenced by artificial ^<14>C produced by nuclear bomb testing from late 1950s to early 1960s. By careful investigation of ^<14>C concentration of tree rings and human teeth formed in this time ranges, we can establish a relation between ^<14>C concentration and calendar year. By applying this relation to a sample whose ^<14>C concentration can be measured, we can estimate the formation age of the sample. This method of age determination was applied for a forensic study; i.e., for a dead body excavated from a building scrapped in 2002 that had been constructed since 1971. By measuring ^<14>C abundance of several pieces of hair and human tooth (the third molar), the time of death of the body was estimated at around 1970, and her age was more than 32 years old at that time. These estimations were consistent with the real values that were revealed after the case was solved by finding out the real murderer, 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年(2002年度)報告 Proceedings of the 15th Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2002 日時:平成15 (2003)年1月30日(木)、31日(金) 会場:名古屋大学シンポジオン Date:January 30th and 31st,2003 Place:Nagoya University Symposion Hall}, pages = {83--90}, title = {^<14>C年代測定の法医学的利用(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)}, volume = {14}, year = {2003} }