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Size characterization of ion tracks in PET and PTFE using SAXS

  • D. Schauries*
  • , M. D. Rodriguez
  • , B. Afra
  • , T. Bierschenk
  • , C. Trautmann
  • , S. Mudie
  • , P. Kluth
  • *Corresponding author for this work

    Research output: Contribution to journal › Article › peer-review

    28 Citations (Scopus)

    Abstract

    Ion tracks in polyethylene terephthalate (PET) and polytetrafluoroethylene (PTFE) were created by swift heavy ion irradiation and subsequently characterized using small angle X-ray scattering (SAXS). Due to their reduced density compared to the surrounding matrix, cylindrical geometry, and parallel orientation, ion tracks produce a characteristic scattering pattern which allows quantitative analysis of their radius with high precision. For ion tracks in PET thermal annealing led to a gradual fading with a decrease in density difference yet a simultaneous increase in ion track radius. Such an increase in radius is the direct opposite compared to temperature induced ion track shrinking in inorganic materials, and suggests a very different thermal response of the polymer.

    Original languageEnglish
    Pages (from-to)573-577
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume365
    DOIs
    Publication statusPublished - 15 Dec 2015

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