超短パルスレーザー駆動X線管を用いた時間分解蛍光X線分光システムの開発 Development of Time-Resolved X-ray Fluorescence Spectroscopy System using an X-ray Tube Driven by Ultrafast Pulsed Laser

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A femtosecond-laser-driven X-ray source and an X-ray focusing system have been developed for the time-resolved X-ray fluorescence spectroscopy. The X-ray source, in which a plasma cathode induced by a 10<sup>13</sup>-W/cm<sup>2</sup> laser pulse serves as an electron source of an X-ray tube, provides 10<sup>9</sup> Cu K<sub>α</sub> photons in 4πsr per pulse. The X-ray pulse duration is measured to be about two hundred nanoseconds. Emission analysis of the plasma cathode indicates that the temporal characteristics of the X-ray pulse are determined by the dynamics of the plasma particles under the electrostatic shielding against the applied voltage in the X-ray tube. As for the X-ray focusing system, a focal spot size by a polycapillary lens is measured and the enhancement of X-ray fluorescence intensity due to the lens is demonstrated.

収録刊行物

  • 表面科学 = Journal of The Surface Science Society of Japan  

    表面科学 = Journal of The Surface Science Society of Japan 29(7), 413-417, 2008-07-10 

    The Surface Science Society of Japan

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各種コード

  • NII論文ID(NAID)
    10021166546
  • NII書誌ID(NCID)
    AN00334149
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03885321
  • NDL 記事登録ID
    9576493
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z15-379
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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