Study on depth profile of heavy ion irradiation effects in poly(tetrafluoroethylene-co-ethylene)

Tomoko Gowa, Tomoyuki Shiotsu, Tatsuya Urakawa, Toshitaka Oka, Takeshi Murakami, Akihiro Oshima, Yoshimasa Hama, Masakazu Washio

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    High linear energy transfer (LET) heavy ion beams were used to irradiate poly(tetrafluoroethylene-co-ethylene) (ETFE) under vacuum and in air. The irradiation effects in ETFE as a function of the depth were precisely evaluated by analyzing each of the films of the irradiated samples, which were made of stacked ETFE films. It was indicated that conjugated double bonds were generated by heavy ion beam irradiation, and their amounts showed the Bragg-curve-like distributions. Also, it was suggested that higher LET beams would induce radical formation in high density and longer conjugated C=C double bonds could be generated by the second-order reactions. Moreover, for samples irradiated in air, C=O was produced correlating to the yield of oxygen molecules diffusing from the sample surface.

    Original languageEnglish
    Pages (from-to)264-267
    Number of pages4
    JournalRadiation Physics and Chemistry
    Volume80
    Issue number2
    DOIs
    Publication statusPublished - 2011 Feb

    Fingerprint

    polytetrafluoroethylene
    ion irradiation
    heavy ions
    linear energy transfer (LET)
    ethylene
    Bragg curve
    profiles
    ion beams
    irradiation
    air
    vacuum
    oxygen
    molecules

    Keywords

    • Conjugated double bonds
    • ETFE
    • Heavy ion
    • High LET

    ASJC Scopus subject areas

    • Radiation

    Cite this

    Study on depth profile of heavy ion irradiation effects in poly(tetrafluoroethylene-co-ethylene). / Gowa, Tomoko; Shiotsu, Tomoyuki; Urakawa, Tatsuya; Oka, Toshitaka; Murakami, Takeshi; Oshima, Akihiro; Hama, Yoshimasa; Washio, Masakazu.

    In: Radiation Physics and Chemistry, Vol. 80, No. 2, 02.2011, p. 264-267.

    Research output: Contribution to journalArticle

    Gowa, Tomoko ; Shiotsu, Tomoyuki ; Urakawa, Tatsuya ; Oka, Toshitaka ; Murakami, Takeshi ; Oshima, Akihiro ; Hama, Yoshimasa ; Washio, Masakazu. / Study on depth profile of heavy ion irradiation effects in poly(tetrafluoroethylene-co-ethylene). In: Radiation Physics and Chemistry. 2011 ; Vol. 80, No. 2. pp. 264-267.
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    AU - Murakami, Takeshi

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