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Fiber-optic laser-induced breakdown spectroscopy of zirconium metal in the air: The special feature of the plasma produced by the long-pulse laser
https://repo.qst.go.jp/records/48556
https://repo.qst.go.jp/records/485563a4a0119-93bb-4b4c-958c-c939b47d09ef
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-03-05 | |||||
| タイトル | ||||||
| タイトル | Fiber-optic laser-induced breakdown spectroscopy of zirconium metal in the air: The special feature of the plasma produced by the long-pulse laser | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Matsumoto, Ayumu
× Matsumoto, Ayumu× Oba, Hironori× Toshimitsu, Masaaki× Akaoka, Katsuaki× Ruas, Alexandre× Sakka, Tetsuo× 大場 弘則 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The decommissioning of the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi Nuclear Power Plant is an essential issue in nuclear R&D. Fiber-optic laser-induced breakdown spectroscopy (Fiber-optic LIBS) could be used for in-situ elemental analysis of the inside of the damaged reactors. To improve the performances under the difficult conditions, using a long-pulse laser can be an efficient alternative. In this work, the emission spectra of zirconium metal in the air obtained for a normal-pulse laser (6 ns) and a long-pulse laser (100-ns) (wavelength: 1064 nm, pulse energy: 12.5 mJ, spot diameter: 0.35 mm) are compared to investigate the fundamental aspects of fiber-optic LIBS with the long-pulse laser. The spectral feature is considerably different: when the long-pulse laser is used, the atomic and molecular emission is remarkably enhanced. The enhancement of the atomic emission at the near infrared (NIR) region would lead to the observation of emission lines with minimum overlapping even in the high-radiation fields. To understand the differences in the spectra induced respectively from the normal pulse laser and the long pulse laser, photodiode signals, time-resolved spectra, plasma parameters, emission from the ambient air, and emission regions are investigated, which show the particular characteristics of the plasma produced by the long-pulse laser. | |||||
| 書誌情報 |
Spectrochimica Acta Part B: Atomic Spectroscopy 巻 142, p. 37-49, 発行日 2018-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0584-8547 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.sab.2018.01.012 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0584854717303713 | |||||
| 関連名称 | https://www.sciencedirect.com/science/article/pii/S0584854717303713 | |||||
