| Project/Area Number |
14550718
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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 | 一般 |
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| Research Field |
Metal making engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
MATSUTA Hideyuki Tohoku University, Institute for Materials Research, Research Associate, 金属材料研究所, 助手 (00181735)
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| Co-Investigator(Kenkyū-buntansha) |
WAGATSUMA Kazuaki Tohoku University, Institute for Materials Research, Professor, 金属材料研究所, 教授 (30158597)
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| Project Period (FY) |
2002 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2003: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2002: ¥3,300,000 (Direct Cost: ¥3,300,000)
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| Keywords | Scrap iron / Tramp element / Low pressure / Laser-induced plasma / Optical emission spectrometry / 低圧レーザー誘起プラズマ |
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| Research Abstract |
The chamber for the low-pressure laser-induced plasma emission spectrometry, which is used as a tramp element detector was constructed. To guide a high power laser beam into the chamber, the optical system using dielectric mirror and the system using an optical fiber (core diameter:1mm) were tested. To date high power laser beam could not be guided by an optical fiber due to the breakdown of the optical fiber, so the optical system using dielectric minor was used for this experiment. Painted steel plates and Zn plated steel plate were used as a model of scrap iron. By using this system, qualitative information about the surface coatings of the steel plates could be obtained in a short time. Next new excitation source (tramp element detector) was developed. In this experiment, laser beam of medium power from diode-pumped YAG laser was guided by a optical fiber for laser ablation and generated sample atoms were excited by a He glow-discharge plasma. Details of the above-mentioned research were published in paper, in lecture meeting and in international conference.
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