Two different polymer membranes, polyethylene and Nafion, have been sequentially implanted under vacuum at room temperature with 90 keV copper ions up to 10¹⁷ ions/cm²; after each implantation step, the targets were subjected to analysis with Positron annihilation lifetime spectroscopy and coincidence Doppler broadening spectroscopy. Both membranes revealed a similar behavior regarding the high fluence superficial implantation, but with different degree of magnitude. In order to endorse the Positrons annihilation spectroscopy results, scanning electron microscopy coupled with energy‐dispersive energy has been performed on the same targets, despite its lower sensitivity.

中文翻译：

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植入聚合物膜的正电子polymer没光谱研究

两种不同的聚合物膜，聚乙烯和Nafion，已在室温下真空下依次注入90 keV铜离子，最高可达10 ¹⁷离子/ cm ²。在每个植入步骤之后，用正电子an没寿命谱和巧合多普勒展宽谱对靶标进行分析。两种膜在高通量浅表植入方面均表现出相似的行为，但程​​度不同。为了认可正电子an没光谱法的结果，尽管灵敏度较低，但在同一目标上进行了扫描电子显微镜和能量分散能的结合。