کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7963232 1514142 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydration effect on ion exchange resin irradiated by swift heavy ions and gamma rays
ترجمه فارسی عنوان
اثر هیدراتاسیون روی رزین تبادل یونی تابش شده توسط یونهای سنگین و پرتوهای گاما
کلمات کلیدی
رزین های کاتیونی، رزین های آنیونی، عملکرد هیدروژن، هیدراتاسیون، رادیولیز،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
چکیده انگلیسی
Gamma radiolysis of ion exchange resins (IER) is widely studied since the sixties, as a function of different parameters (resin type, dose, atmosphere, water content …). However, to our knowledge, there are very few data concerning hydrogen emission from anionic and cationic resins irradiated at high Linear Energy Transfers (LET). In the present work, we focus on the influence of hydration on hydrogen emission, in anionic and cationic resins irradiated under inert atmosphere using Swift Heavy Ions (SHI) and gamma irradiations. The radiation chemical yield of molecular hydrogen is nonlinear with water content for both resins. The molecular hydrogen production depends first on the water form in IER (free or linked) and second on the solubility of degradation products. Three steps have been observed: at lower water content where G(H2) is stable, at 50%, G(H2) increases due to reactions between water radiolytic species and the resin functional groups and at high water content, G(H2) decreases probably due to its accumulation in water and its consumption by hydroxyl radicals in the supernatant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 504, June 2018, Pages 68-78
نویسندگان
, , , , ,