| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-01-20 |
| タイトル |
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タイトル |
Is soft X-ray irradiation of a high-LET like nature? -dependence of X-ray energy in cross-linking yield of polydimethylsiloxane and halogenated polystyrenes |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Seiko Nakagawa
Ohara Maki
Yokoya Akinari
Noriko Usami
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
In a previous study, we investigated the dose response of alanine dosimeters irradiated with 2.0–7.0 keV monochromatic X-rays and found that the soft X-ray irradiation should be a high-LET like nature (Radiat. Phys. Chem. 214, 111304). The lower energy of Auger- and photo-electrons ejected from the irradiated materials will cause high LET irradiation. This suggests that soft X-ray irradiation can induce the effective cross-linking of polymer. In the present study, we examined the cross-linking behavior of polydimethylsiloxane and halogenated polystyrenes under 2.5–5.0 keV monochromatic X-ray irradiations. The cross-linking yield increased with the dose and saturated at significantly lower dose than those achieved with high-energy photons or electrons. The result is the reverse trend of alanine radical yield observed in the previous study. The cross-linking yields of halogenated polystyrenes highlight the influence of Auger- and photoelectron energies modulated by both halogen substitution and the energy of X-rays on the cross-linking process. Finally, cross-linking efficiency can be controlled by the type of element present in the polymer and X-ray energy. |
| 書誌情報 |
Radiation Physics and Chemistry
巻 242,
p. 113635,
発行日 2026-01
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| 出版者 |
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出版者 |
Elsevier |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.radphyschem.2026.113635 |
