Double differential cross sections for proton induced electron emission from molecular analogues of DNA constituents for energies in the Bragg peak region
作者： Benedikt Rudek , Daniel Bennett , Marion U. Bug , Mingjie Wang , Woon Yong Baek
DOI: 10.1063/1.4962171
关键词: Bragg peak 、 Born approximation 、 Electron 、 Scattering 、 Boundary value problem 、 Trimethyl phosphate 、 Ionization 、 Chemistry 、 Atomic physics 、 Valence electron
摘要: For track structure simulations in the Bragg peak region, measured electron emission cross sections of DNA constituents are required as input for developing parameterized model functions representing scattering probabilities. In present work, double differential were from vapor-phase pyrimidine, tetrahydrofuran, and trimethyl phosphate that structural analogues to base, sugar, residue DNA, respectively. The range proton energies was 75 keV 135 keV, angles ranged 15° 135°, 10 eV 200 eV. Single total derived by integration over angle energy compared semi-empirical Hansen-Kocbach-Stolterfoht (HKS) a quantum mechanical calculation employing first Born approximation with corrected boundary conditions (CB1). CB1 provides best prediction single section, while can be fitted models. three samples proportional their number valence electrons.
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sci-hub.se 参考文章(51)
Christophe Champion, Michele A. Quinto, Philippe F. Weck, Electron- and proton-induced ionization of pyrimidine European Physical Journal D. ,vol. 69, pp. 127- ,(2015) , 10.1140/EPJD/E2015-60095-6
M. C. Fuss, L. Ellis-Gibbings, D. B. Jones, M. J. Brunger, F. Blanco, A. Muñoz, P. Limão-Vieira, G. García, The role of pyrimidine and water as underlying molecular constituents for describing radiation damage in living tissue: A comparative study Journal of Applied Physics. ,vol. 117, pp. 214701- ,(2015) , 10.1063/1.4921810
L.J. Kieffer, Low-energy electron-collision cross-section data: Part III: Total scattering; differential elastic scattering* Atomic Data and Nuclear Data Tables. ,vol. 2, pp. 293- 391 ,(1970) , 10.1016/S0092-640X(70)80012-2
Benedikt Rudek, Alexander Arndt, Daniel Bennett, Mingjie Wang, Hans Rabus, Ion induced fragmentation cross-sections of DNA constituents European Physical Journal D. ,vol. 69, pp. 237- ,(2015) , 10.1140/EPJD/E2015-60204-7
J. B. Crooks, M. E. Rudd, Angular and Energy Distribution of Cross Sections for Electron Production by 50-300-keV-Proton Impacts on N 2 , O 2 , Ne, and Ar Physical Review A. ,vol. 3, pp. 1628- 1634 ,(1971) , 10.1103/PHYSREVA.3.1628
D Belkic, Electron capture in high-energy ion-atom collisions Physics Reports. ,vol. 56, pp. 279- 369 ,(1979) , 10.1016/0370-1573(79)90035-8
J. Tabet, S. Eden, S. Feil, H. Abdoul-Carime, B. Farizon, M. Farizon, S. Ouaskit, T. D. Märk, Absolute total and partial cross sections for ionization of nucleobases by proton impact in the Bragg peak velocity range Physical Review A. ,vol. 82, pp. 022703- ,(2010) , 10.1103/PHYSREVA.82.022703
Sébastien Incerti, Gérard Baldacchino, M Bernal, Riccardo Capra, Christophe Champion, Ziad Francis, Paul Guèye, Alfonso Mantero, Barbara Mascialino, Philippe Moretto, Petteri Nieminen, Carmen Villagrasa, Christina Zacharatou, None, THE Geant4-DNA project International Journal of Modeling, Simulation, and Scientific Computing. ,vol. 1, pp. 157- 178 ,(2010) , 10.1142/S1793962310000122
D. J. Lynch, Electron emission from methane, ammonia, monomethylamine, and dimethylamine by 0.25 to 2.0 MeV protons Journal of Chemical Physics. ,vol. 64, pp. 2616- 2622 ,(1976) , 10.1063/1.432515
O. Boudrioua, C. Champion, C. Dal Cappello, Y. V. Popov, Ab initio calculation of differential and total cross sections for the ionization of water vapor by protons Physical Review A. ,vol. 75, pp. 022720- ,(2007) , 10.1103/PHYSREVA.75.022720