Experimental and theoretical study of the triple-differential cross section for electron-impact ionization of thymine molecules

被引：28

作者：

Bellm, S. M. ^{[1
]}

Colyer, C. J. ^{[1
]}

Lohmann, B. ^{[1
]}

Champion, C. ^{[2
]}

机构：

[1] Univ Adelaide, ARC Ctr Excellence Antimatter Matter Studies, Adelaide, SA 5005, Australia

[2] Univ Paul Verlaine Metz, Lab Phys Mol & Collis, ICPMB FR CNRS 2843, Inst Phys, FR-57078 Metz 3, France

来源：

PHYSICAL REVIEW A | 2012年 / 85卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

MOMENTUM SPECTROSCOPY; DAMAGE; SCATTERING; ATOMS; WATER; DNA; ENERGIES; TRACKS;

D O I：

10.1103/PhysRevA.85.022710

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Triply differential cross sections for the electron-impact ionization of inner valence orbitals of thymine have been measured using the (e,2e) technique at an incident electron energy of 250 eV. The measurements have been performed with coplanar asymmetric kinematics for scattered electron angles of -10 degrees and -15 degrees and with an ejected-electron energy of 20 eV. Theoretical calculations have been performed within the first-order Born approximation and are in very good agreement with the experimental data.

引用

页数：7

共 38 条

[1]

[Anonymous], J ATOMIC MOL OPTICAL

[2] Calculated cross sections for electron elastic and inelastic scattering from DNA and RNA bases [J].

Blanco, F. ;

Garcia, G. .

PHYSICS LETTERS A, 2007, 360 (06) :707-712

[3]

Boudaïffa B, 2002, RADIAT RES, V157, P227, DOI 10.1667/0033-7587(2002)157[0227:CSFLEE]2.0.CO

[4]

[5]

Boudaïffa B, 2000, SCIENCE, V287, P1658, DOI 10.1126/science.287.5458.1658

[6] TRIPLY DIFFERENTIAL CROSS-SECTIONS FOR IONIZATION OF HYDROGEN-ATOMS BY ELECTRONS - THE INTERMEDIATE AND THRESHOLD ENERGY REGIONS [J].

BRAUNER, M ;

BRIGGS, JS ;

KLAR, H ;

BROAD, JT ;

ROSEL, T ;

JUNG, K ;

EHRHARDT, H .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1991, 24 (03) :657-673

[7] The effect of π-stacking, H-bonding, and electrostatic interactions on the ionization energies of nucleic acid bases: adenine-adenine, thymine-thymine and adenine-thymine dimers [J].

Bravaya, Ksenia B. ;

Kostko, Oleg ;

Ahmed, Musahid ;

Krylov, Anna I. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (10) :2292-2307

[8] Coplanar asymmetric (e, 2e) measurements of ionization of N2O [J].

Cavanagh, SJ ;

Lohmann, B .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1999, 32 (12) :L261-L270

[9] Single ionization of the water molecule by electron impact: Angular distributions at low incident energy [J].

Champion, C ;

Cappello, CD ;

Houamer, S ;

Mansouri, A .

PHYSICAL REVIEW A, 2006, 73 (01)

[10] Differential and total (e,2e) cross sections of simple polyatomic molecules [J].

Champion, C ;

Hanssen, J ;

Hervieux, PA .

JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (19) :9423-9429

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