Absolute vibrational excitation cross sections for 1-18 eV electron scattering from condensed dimethyl phosphate (DMP)

被引：6

作者：

Lemelin, V. ^{[1
]}

Bass, A. D. ^{[1
]}

Wagner, J. R. ^{[1
]}

Sanche, L. ^{[1
]}

机构：

[1] Univ Sherbrooke, Fac Med Sci Radiat, Dept Med Nucl & Radiobiol, Grp Sci Radiat, Sherbrooke, PQ J1H 5N4, Canada

来源：

JOURNAL OF CHEMICAL PHYSICS | 2017年 / 147卷 / 23期

关键词：

LOW-ENERGY-ELECTRON; DENSITY-FUNCTIONAL THEORY; MONTE-CARLO-SIMULATION; DNA-STRAND BREAKS; LOSS SPECTROSCOPY; SHAPE RESONANCES; TRACK-STRUCTURE; LIQUID WATER; SOLID FILMS; DAMAGE;

D O I：

10.1063/1.5008486

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Absolute cross sections (CSs) for vibrational excitation by 1-18 eV electrons incident on condensed dimethyl phosphate (DMP) were measured with a high-resolution electron energy loss (EEL) spectrometer. Absolute CSs were extracted from EEL spectra of DMP condensed on multilayer film of Ar held at about 20 K under ultra-high vacuum (similar to 1 x 10(-11) Torr). Structures observed in the energy dependence of the CSs around 2, 4, 7, and 12 eV were compared with previous results of gas-and solid-phase experiments and with theoretical studies on dimethyl phosphate and related molecules. These structures were attributed to the formation of shape resonances. Published by AIP Publishing.

引用

页数：9

共 67 条

[1] Total dissociative electron attachment cross sections for molecular constituents of DNA [J].