کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9817814 | 1518772 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphology of track cores and halos created by swift uranium ions in polycarbonate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Morphology of track cores and halos created by swift uranium ions in polycarbonate Morphology of track cores and halos created by swift uranium ions in polycarbonate](/preview/png/9817814.png)
چکیده انگلیسی
A small-angle X-ray scattering study of ion damage trails, latent ion tracks, created through a 60-μm thick polycarbonate foil by penetrating 2.64 GeV U ions, has revealed density decreases of 69% along 5.8-nm diameter track cores, and low concentration of 8-nm diameter bubbles that reside in the surrounding track halos. We attribute track formation to spatially confined radiolysis and subsequent release of gaseous and volatile alteration products. Radiolysis is undoubtedly activated by primary reactive species formed upon ion-energy deposition. With the recently observed similar open structure of U-ion track cores in polyimide, it is likely that the technologically important porous structure is a common characteristic of polymeric ion tracks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 236, Issues 1â4, July 2005, Pages 81-87
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 236, Issues 1â4, July 2005, Pages 81-87
نویسندگان
Sameer Abu Saleh, Yehuda Eyal,