クライオターゲットによる「水の窓」レーザ生成プラズマ軟X線源

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2017/03/01

タイトル(英語): Laser Plasma Soft X-ray Source in the Water Window Based on Cryogenic Targets

著者名: 天野　壮（兵庫県立大学 高度産業科学技術研究所）

著者名(英語): Sho Amano (Laboratory of Advanced Science and Technology for Industry, University of Hyogo)

キーワード: 水の窓，レーザプラズマX線，クライオターゲット，アルゴン，窒素，高平均出力　　water window，laser plasma X-ray，cryogenic target，argon，nitrogen，high average power

要約(英語): To generate continuously repetitive soft X-ray pulses in the water window from laser-produced plasmas, a one-dimensionally translating substrate system with a closed He gas cryostat that can continuously supply various cryogenic targets has been developed. The system was successfully operated at a lowest temperature of 15 K and at a maximum up-down speed of 12 mm/sec. Solid Ar and N2 layers were formed, and the water window spectra from them were studied. The emission intensity from Ar was found to be about 8 times stronger than that from N2. Developed laser plasma source demonstrated high average power of 140 mW in the water window soft X-ray, when a commercial Nd:YAG Q-switched laser was used to irradiate a solid Ar target with energy of 1 J at a repetition rate of 1 Hz. It can be used for various applications, including soft X-ray microscopy, in place of synchrotron facilities.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.137 No.3 （2017） 特集：量子ビームによるナノバイオサイエンス技術

本誌掲載ページ: 406-410 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/137/3/137_406/_article/-char/ja/