Laser synchronous double-denudation system and method

A technology of laser and subsystems, applied in the field of geological analysis

Active Publication Date: 2018-05-29
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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[0012] Various embodiments of the present invention provide a laser synchronous double ablation syst

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  • Laser synchronous double-denudation system and method
  • Laser synchronous double-denudation system and method
  • Laser synchronous double-denudation system and method

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on this The embodiments in the invention, and all other embodiments obtained by persons of ordinary skill in the art without creative effort, all belong to the scope of protection of the present invention.

[0032] In view of the problems existing in the single ablation mode of the current LA system, the laser synchronous double ablation system and the ablation method provided by the embodiments of the present disclosure can provide a laser in-situ micro-area synchronous double ablation system that divides the same laser beam into two. Its ablation method realizes the double ablation mode of the LA system, and achieves the introduction of the internal ...

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Abstract

The invention discloses a laser synchronous double-denudation system and method. The laser synchronous double-denudation system comprises a single-laser-beam shaping sub system and a double-way light-adjusting sub system. The single-laser-beam shaping sub system comprises a laser, an axicon pair, a micro-optical element, a collecting mirror and a microporous turn table, and the double-way light-adjusting sub system comprises a first beam splitter prism, a second beam splitter prism, a first reflecting objective, a second reflecting objective, a first angle tuning optical filter, a second angletuning optical filter, a first projection objective and a second projection objective. The laser synchronous double-denudation method comprises the steps that a single laser beam is generated by utilizing the single-laser-beam shaping sub system, and shaping is conducted on the single laser beam; and the shaped single laser beam is divided into a first light beam and a second light beam by utilizing the double-way light-adjusting sub system, the first light beam and the second light beam are guided to a sample and an internal standard substance correspondingly, and synchronous denudation of the sample and the internal standard substance is achieved.

Description

technical field [0001] The invention relates to the field of geological analysis, in particular to a laser synchronous double ablation system and an ablation method thereof, so as to realize in-situ micro-area analysis of geological samples. Background technique [0002] "If a worker wants to be good at his work, he must first sharpen his tools." The development of earth science research is inseparable from the progress of instruments and analytical technologies. Taking isotope geochemistry and geochronology in geoscience research as an example, they are the main means to study the spatial migration of matter and energy over time during the formation and evolution of the lithosphere. The traditional isotopic composition and trace element determination adopts the solution sampling method, which is a bulk analysis method (Bulk analysis), and only the average composition of the sample can be obtained. However, due to the complexity of geological processes, most natural mineral...

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Application Information

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IPC IPC(8): B23K26/362B23K26/067B23K26/70G01N1/44
CPCB23K26/0673B23K26/361B23K26/707G01N1/44
Inventor 黄超谢烈文杨岳衡
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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