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Investigation of the time interval of plasma generation for a high repetition rate laser ion source
https://repo.qst.go.jp/records/79195
https://repo.qst.go.jp/records/791950c6b8f9c-7019-42e3-b1d7-21b6b83395b5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-04 | |||||
| タイトル | ||||||
| タイトル | Investigation of the time interval of plasma generation for a high repetition rate laser ion source | |||||
| 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 |
Kashiwagi, Hirotsugu
× Kashiwagi, Hirotsugu× Yamada, Keisuke× Hirotsugu, Kashiwagi× Keisuke, Yamada |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To apply a laser ion source that generates a high-intensity pulsed beam to high-dose applications, such as ion implantation, a high repetition rate operation with a short pulse interval is required. However, when the pulse interval is shortened, there is a concern that a plasma, which is different from a single pulse plasma generation, may be formed due to the interaction between the preceding and following pulses. We investigated the time interval in which plasma pulses are generated without pulse-to-pulse interaction using a laser ion source with two lasers. In the experiment, a graphite target was irradiated by two laser beams (1064-nm wavelengths) with the same pulse widths (5.4 ns) and energies (15 mJ, 30 mJ, and 45 mJ) at different time intervals ranging from 1000 μs to 0 μs, and the time integrated value corresponding to the total charge amount was calculated from the measured time-of-flight signal of the generated carbon ion current. It was observed that the total charge did not change when the time interval was as low as approximately 100 μs, and the total charge rapidly decreased when the time interval was below approximately 100 μs. Thus, it was determined that the interaction occurs within a time interval of approximately 100 μs. | |||||
| 書誌情報 |
Review of scientific instruments 巻 91, 号 3, p. 033305-1-033305-5, 発行日 2020-03 |
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| 出版者 | ||||||
| 出版者 | American Institute Of Physics | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0034-6748 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/1.5130999 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1063/1.5130999 | |||||
