کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9817980 | 1518773 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fragmentation of adenine induced by collision with slow F2+ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
We present a study of ionization and fragmentation of gaseous DNA base adenine induced by collision with 36Â keV F2+ ions. Coincidence measurements between the outgoing projectiles F+, the recoil ions and the number of ejected electrons during the interaction have been performed. Charged adenine and its fragments mass distribution have been analyzed by time of flight spectrometry. The time of flight spectrum presents a peak of stable mono-charged adenine as well as the signature of an important fragmentation in mostly light charged fragments. Results have been interpreted as a function of the number of ejected electrons, which is related to the initial charge state of adenine before fragmentation. The coincidence spectrum between fragments provides information on some particular dissociation channels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 235, Issues 1â4, July 2005, Pages 392-396
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 235, Issues 1â4, July 2005, Pages 392-396
نویسندگان
R. Brédy, J. Bernard, L. Chen, B. Wei, A. Salmoun, T. Bouchama, M.C. Buchet-Poulizac, S. Martin,