Iron isotopic signatures in pyrites are considered as a good proxy for reconstructing paleoenvironmental and local redox conditions. However, the investigation of micro‐pyrites less than 20 μm in size has been limited by the available analytical techniques. The development of a new brighter radio‐frequency plasma ion source (Hyperion‐II source) enhances the spatial resolution by increasing the beam density 10 times compared with the Duoplasmatron source.

中文翻译：

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使用新型Hyperion-II射频等离子体源通过SIMS进行黄铁矿中铁同位素的高空间分辨率测量

黄铁矿中的铁同位素特征被认为是重建古环境和局部氧化还原条件的良好替代。但是，可评估的分析技术限制了对尺寸小于20μm的微型黄铁矿的研究。与Duoplasmatron辐射源相比，新型更明亮的射频等离子体离子源（Hyperion-II辐射源）的开发使射束密度提高了10倍，从而提高了空间分辨率。