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Mass spectrum resolution device for measuring laser ablation ion species with improved time of flight mass spectrometry
Mass spectrum resolution device for measuring laser ablation ion species with improved time of flight mass spectrometry
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机译:用于测量激光烧蚀离子物种的质谱分辨率,具有改进的飞行时间质谱法
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摘要
A mass spectrum resolution device for measuring laser ablation ion species with improved time of flight mass spectrometry includes a vacuum system unit, a plasma production unit, and a particle restraint selection and separation unit, wherein the particle restraint selection and separation unit comprises a particle limit selector and a plurality of ion pulse accelerated electrode plates; the particle limit selector comprises a restrainer lifting block, a restrainer and a restrainer selection baffle; a through hole is formed in the restrainer lifting block; a plurality of circular holes with different apertures are formed in the restrainer selection baffle, and the restrainer and the restrainer selection baffle are arranged in the restrainer lifting block and can move; and the ion pulse accelerated electrode plates are arranged in the advance direction of particles and are axially parallel to the restrainer lifting block.
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