Two-dimensional Observation of Emission Spectra Excited from Laser Induced Plasmas and the Application to Emission Spectrometric Analysis
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- KITAOKA Chizuru
- Institute for Materials Research, Tohoku University
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- WAGATSUMA Kazuaki
- Institute for Materials Research, Tohoku University
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説明
The spatial distribution analysis of emission signals from a laser-induced plasma can provide information on the excitation mechanism as well as on the optimization of the analytical conditions when it is employed as a sampling and excitation source in optical emission spectrometry. A two-dimensionally imaging spectrometer system was employed to measure spatial variations in the emission intensities of a copper sample and plasma gases when krypton, argon, or helium was employed under various pressure conditions. The emission image of the Cu I 324.75-nm line consists of a breakdown spot and a plasma plume, where the breakdown zone expands toward the surrounding gas. The shape and the intensities of the plasma plume are strongly dependent on the kind and pressure of the plasma gas, while those of the breakdown zone are less influenced by these experimental parameters. This effect can be explained by the difference in the cross-section of collisions between krypton, argon, and helium. The signal-to-background ratio of the Cu I 324.75-nm line was estimated over two-dimensional images to determine the optimum position for analytical applications.
収録刊行物
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- Analytical Sciences
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Analytical Sciences 23 (11), 1261-1265, 2007
社団法人 日本分析化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204256850560
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- NII論文ID
- 130004441396
- 10019793663
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- NII書誌ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD2sXhtlems7zO
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- ISSN
- 13482246
- 09106340
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- HANDLE
- 10097/51741
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- NDL書誌ID
- 8982259
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- PubMed
- 17998742
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- Web Site
- https://tohoku.repo.nii.ac.jp/records/44016
- http://id.ndl.go.jp/bib/8982259
- https://ndlsearch.ndl.go.jp/books/R000000004-I8982259
- https://link.springer.com/content/pdf/10.2116/analsci.23.1261.pdf
- https://link.springer.com/article/10.2116/analsci.23.1261/fulltext.html
- http://www.jstage.jst.go.jp/article/analsci/23/11/23_11_1261/_pdf
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- 本文言語コード
- en
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