VUV study of electron impact dissociative excitation of thymine

被引：4

作者：

Tiessen, C. J. ^{[1
,2
]}

Trocchi, J. A. ^{[1
]}

Hein, J. D. ^{[1
,3
]}

Dech, J. ^{[1
]}

Kedzierski, W. ^{[1
]}

McConkey, J. W. ^{[1
]}

机构：

[1] Univ Windsor, Dept Phys, Windsor, ON N9B 3P4, Canada

[2] Univ Ottawa, Dept Phys, 75 Laurier Ave E, Ottawa, ON K1N 6N5, Canada

[3] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2016年 / 49卷 / 12期

基金：

加拿大自然科学与工程研究理事会;

关键词：

thymine; electron-impact; dissociation; excitation; VUV; GAS-PHASE; MOLECULES;

D O I：

10.1088/0953-4075/49/12/125204

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Dissociative excitation of thymine following electron impact was studied in the energy range up to 430 eV. Emissions in the vacuum ultra-violet spectral region below 150 nm were studied and found to be dominated by the hydrogen Lyman series. Emission cross section data reveal that Lyman-alpha excitation displays a broad maximum at an electron impact energy of 160 eV. The probability of extracting other excited atoms from the parent molecule is found to be insignificant. Possible excitation and dissociation mechanisms in the parent molecule are discussed.

引用

页数：4

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