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Formation of energetic heavy ion tracks in polyimide thin films

机译:聚酰亚胺薄膜中高能重离子径迹的形成

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摘要

Polyimide thin films have been irradiated with a high energy beam of heavy ions to a fluence of approximately 4 × 10~(13) ions/cm~2. Proton backscattering spectroscopy was used to measure the composition of the films, which showed that oxygen was the element that exhibited the most rapid loss from the film. The gases evolved from the film during polymer modification were monitored using a quadrupole mass spectrometer for residual gas analysis (RCA). The fluence dependence of RGA signals were indicative of multi-step processes of gas release, whereby the passage of an ion through a region of pristine film changes the local molecular structure to one that will more readily form volatile species when subsequent ions pass.
机译:聚酰亚胺薄膜已用重离子的高能束辐照至大约4×10〜(13)离子/ cm〜2的通量。质子背散射光谱法用于测量膜的组成,这表明氧是从膜中损失最快的元素。使用四极杆质谱仪监测聚合物改性过程中从薄膜中释放出的气体,以进行残留气体分析(RCA)。 RGA信号的注量依赖性表示气体​​释放的多步过程,从而使离子通过原始膜区域的过程将局部分子结构更改为一种分子,该分子结构将在随后的离子通过时更容易形成挥发性物质。

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  • 作者单位

    Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC 2234, NSW, Australia;

    Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn 3122, VIC, Australia;

    Faculty of Life and Social Sciences, Swinburne University of Technology, Hawthorn 3122, VIC, Australia;

    Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC 2234, NSW, Australia;

    Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC 2234, NSW, Australia;

    Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC 2234, NSW, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polyimide; Ion beam analysis; Residual gas analysis;

    机译:聚酰亚胺;离子束分析;残留气体分析;

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