| Project/Area Number |
10558082
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
AZUMA Nobuhiko Nagaoka University of Technology, Department of Mechanical Engineering, Associate Professor, 工学部, 助教授 (70182996)
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMURA Susumu Nagaoka college of Technology, Associate Professor, 助教授 (10217854)
AZUMA Kumiko National Institute of Polar Research, Associate Professor, 助教授 (80202620)
ITO Yoshiro University of Technology, Department of Mechanical Engineering, Associate Professor, 工学部, 助教授 (60176378)
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| Project Period (FY) |
1998 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2000: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1999: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1998: ¥6,400,000 (Direct Cost: ¥6,400,000)
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| Keywords | Nd / YAG laser / ablation / LIF / microanalysis / ice / sodium / dye laser / ice core / Nd:YAGレーザー |
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| Research Abstract |
The purpose of this study is to develop a continuous and non-destructive technique to analyze chemical constituents in ice core by using Laser Induced Fluorescence method, which enable us to measure the concentration of impurity in ppb order in position resolution of the order of 1 mm.
This study concluded that the device composed of the sample chamber in which a sample can be irradiated by YAG laser under unmelted condition and of detecting part of fluorescence was successfully developed and made it possible to detect of sodium content in ice with consuming less than 1mm^3 of ice. At the moment minimum detection level of sodium concentration is 1 ppm. For further study it is necessary to prepare a sample that contains impurity homogeneously.
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