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首页> 外文期刊>Planetary and space science >Low-energy laser induced breakdown spectroscopy for in-situ space missions to solar system bodies without atmospheres
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Low-energy laser induced breakdown spectroscopy for in-situ space missions to solar system bodies without atmospheres

机译：低能激光诱导击穿光谱仪，用于在没有大气层的情况下对太阳系物体进行原位太空飞行

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摘要

Several space missions to bodies in the solar system consider landers or rovers, which are equipped with laser-induced breakdown spectroscopy (LIBS) instruments as part of the scientific payload. UBS is capable of providing in-situ quantitative elemental analyses of all major and many minor and trace elements of the planetary surface material. Here we focus on the investigation of a particular LIBS application scenario, namely a miniaturized LIBS instrument with a low-energy laser operating in ultra high vacuum (below 1 mPa). Such a scenario is relevant for exploration of asteroids, our Moon or Jupiter's moon Europa. We demonstrate that an excitation energy of only ～ 1 mJ from an infrared laser is sufficient for the formation of a plasma. Elements more abundant than 0.1 wt% in a sample can be detected with sufficient signal-to-noise ratios within about 100 s acquisition time and for a laser irradiance below 50 MW/mm~2.
机译：对太阳系机体的几次太空飞行任务都考虑了着陆器或漫游者，它们配备了激光感应击穿光谱仪（LIBS）仪器作为科学有效载荷的一部分。 UBS能够对行星表面材料的所有主要，许多次要和微量元素进行原位定量元素分析。在这里，我们重点研究特定LIBS应用场景，即具有超高真空（低于1 mPa）的低能量激光的小型LIBS仪器。这种情况与探索小行星，我们的月球或木星的卫星欧罗巴有关。我们证明，红外激光的激发能量仅为〜1 mJ，足以形成等离子体。可以在约100 s的采集时间内以足够的信噪比检测样品中含量超过0.1 wt％的元素，并且激光辐照度低于50 MW / mm〜2。

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  • 来源
    《Planetary and space science》 |2012年第1期|p.57-63|共7页
  • 作者

    S.G. Pavlov; S. Schroeder; I. Rauschenbach; E.K. Jessberger; H.-W. Huebers;

  • 作者单位

    Institute of Planetary Research, German Aerospace Center (DLR), Rutherfordstrasse 2, 12489 Berlin, Germany;

    Institute of Planetary Research, German Aerospace Center (DLR), Rutherfordstrasse 2, 12489 Berlin, Germany;

    Institut fuer Planetologie, Westfaelische Wilhelms-Universitaet, Wilhelm-Klemm-Strasse 70, 48149 Muenster, Germany;

    Institut fuer Planetologie, Westfaelische Wilhelms-Universitaet, Wilhelm-Klemm-Strasse 70, 48149 Muenster, Germany;

    Institute of Planetary Research, German Aerospace Center (DLR), Rutherfordstrasse 2, 12489 Berlin, Germany,Institut fuer Optik und Atomare Physik, Technische Universitaet Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany;

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  • 关键词

    laser-induced breakdown spectroscopy; LIBS; space missions; moon; europa; thin atmosphere;

    机译：激光诱导击穿光谱LIBS;太空任务;月亮;欧罗巴稀薄的气氛;

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