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Anomalous enhancement of water window X-rays emitted from laser produced Au plasma under low-pressure nitrogen atmosphere
https://repo.qst.go.jp/records/66965
https://repo.qst.go.jp/records/66965c5b3fc86-e113-4049-8e3f-fbbfde5520bf
Item type | 会議発表用資料 / Presentation(1) | |||||
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公開日 | 2018-11-07 | |||||
タイトル | ||||||
タイトル | Anomalous enhancement of water window X-rays emitted from laser produced Au plasma under low-pressure nitrogen atmosphere | |||||
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_c94f | |||||
資源タイプ | conference object | |||||
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 |
Namba, S.
× Namba, S.× 岸本, 牧× John C.× Kakunaka, N.× Matsumoto, Y.× 長谷川, 登× 錦野, 将元× Higashiguchi, T.× Ejima, T.× Sunahara, A.× Johzaki, T.× 岸本 牧× 長谷川 登× 錦野 将元 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Water window (WW) soft X-ray (wavelength: 2.3-4.4 nm) is a suitable light source for observing nanometer-size structure of living cells and bio-molecules. Although laser produced plasma has been expected as a bright and short pulse X-ray source, the conversion efficiency from driving laser pulse energy to WW radiation is far below 1%, which hinders the realization of a compact and low-cost X-ray microscope. Recently, it was found that the WW radiation increased, when an Au target was irradiated by the GEKKO XII laser (1053 nm, 500 ps, 120 J) under low-pressure nitrogen atmospheres up to 400 Pa. However, the fact that the laser facility is huge and its repetition rate is very low makes it impossible to apply this X-ray source to the microscope. In order to realize the practical microscope capable of reducing size and cost, The bright X rays generated with a joule class pulsed laser with a high repetition rate is essential. Therefore, under N2 atmospheres we measured the WW spectra emitted from Au plasma generated with a commercial nanosecond laser with a low-output energy and 10Hz-repwtition. |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018) | |||||
発表年月日 | ||||||
日付 | 2018-11-15 | |||||
日付タイプ | Issued |
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Cite as
Namba, S., 岸本, 牧, John C., Kakunaka, N., Matsumoto, Y., 長谷川, 登, 錦野, 将元, Higashiguchi, T., Ejima, T., Sunahara, A., Johzaki, T., 岸本 牧, 長谷川 登, 錦野 将元, 2018, Anomalous enhancement of water window X-rays emitted from laser produced Au plasma under low-pressure nitrogen atmosphere.
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