کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1687194 | 1010648 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydroxyl radical yields in the tracks of high energy 13C6+ and 36Ar18+ ions in liquid water
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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: Hydroxyl radical yields in the tracks of high energy 13C6+ and 36Ar18+ ions in liquid water Hydroxyl radical yields in the tracks of high energy 13C6+ and 36Ar18+ ions in liquid water](/preview/png/1687194.png)
چکیده انگلیسی
This article reports the determination of the OH radiolytic yields in water irradiated by high energy C6+ and Ar18+ ions with LET values of 32 ± 2 and 280 ± 10 eV nmâ1. The time evolution of the yields between 9 Ã 10â11 and 9 Ã 10â8 s was deduced using the scavenging method with SCNâ and Brâ and pulse radiolysis with pulses of 5 and 10 μs. The thiocyanate chemical system is less affected with the local high dose rates specific to the high LET particles than the bromide system. At 32 eV nmâ1 with C6+ ions, G(OH) reaches a maximum of 1.5 Ã 10â7 mol Jâ1 at 1 ns and decreases at earlier times. With Ar18+ ions of 280 eV nmâ1G(OH) is always increasing at early times up to 1.6 Ã 10â7 mol Jâ1 at 9 Ã 10â11 s. In this case the evolution of the hydroxyl radical yields agrees with the high local concentrations obtained with Ar18+ and C6+ ions and depicted in recent literature with the yields of the hydrated electron in the ns range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 245, Issue 1, April 2006, Pages 288-291
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 245, Issue 1, April 2006, Pages 288-291
نویسندگان
G. Baldacchino, G. Vigneron, J.P. Renault, S. Le Caër, S. Pin, J.-C. Mialocq, E. Balanzat, S. Bouffard,