Dissociative electron attachment to DNA

被引:218
作者
Pan, X [1 ]
Cloutier, P [1 ]
Hunting, D [1 ]
Sanche, L [1 ]
机构
[1] Univ Sherbrooke, Fac Med, Grp Canadian Inst Hlth Res Radiat Sci, Sherbrooke, PQ J1H 5N4, Canada
基金
加拿大健康研究院;
关键词
D O I
10.1103/PhysRevLett.90.208102
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Electron-stimulated desorption of anions from thin films of linear and supercoiled DNA is investigated in the range 3-20 eV. Resonant structures are observed with maxima at 9.4+/-0.3, 9.2+/-0.3, and 9.2+/-0.3 eV, respectively, in the yield dependence of H-, O-, and OH- on the incident electron energy. Their formation is attributed to dissociative electron attachment.
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页数:4
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