| Project/Area Number |
07831005
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 時限 |
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| Research Field |
文化財科学
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| Research Institution | Nagoya University |
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Principal Investigator |
FURUKAWA Michiaki Graduate School of Science, Nagoya University, Professor, 理学研究科, 教授 (10011537)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Shinobu Dating and Materials Research Center, Nagoya University Associate Professor, 年代測定資料研究センター, 助教授 (00089856)
KIRASAWA Masahiro Tohoku Univ.Institute for Advanced Materials Processing, Professor, 素材工学研究所, 教授 (90126897)
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| Project Period (FY) |
1995 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Accelerator Mass Spectrometry / Radiocarbon Dating / Ancient Iron Artifacts |
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| Research Abstract |
Revival of Accelerator Mass Spetrometry (AMS) in 1977 was a revolutionary event in the fields of various disciplines : They include physics, chemistry, geology, geography etc. The AMS technique has been applied to radiocarbon dating of very small amouts of samples. History of the use of iron by man is a epoch-making event in the development of human civilization. In this respect, it is important to date ancient iron artifacts by the AMS technique. Theproblem is how to extract carbon in iron samples without the contamination of modern carbon. We have developed two techniques to extract it. One is a dry method : Buring of the sample in a closed system followed by the collection of carbon dioxide. The other is a wet method : The sample is treated with a solution containing chemical reagents and obtained carbon simple element or compound is separated from the solution. According to the property of the sample to be measured, we choose one of the methods. Usually, the dry method is more useful than the wet method. Either methpd can be applied to the samples containg high amount of carbon, and aocurate results are obtained in our laboratory. The processing of samples containig lesser carbon, which are often more valuable than the other samples, is a subject of future studies.
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