In this investigation, the fully differential cross sections (FDCS) for ionization of electron impact at low energy (E0 = 67 eV) were measured for the specific orientations of the molecules and around it axis. In the full perpendicular plane (FPP), the FDCS for CF4 were experimentally figured out by using reaction microscope (REMI) for different kinematics such as two ejection electron energies of 5 eV and 8 eV, scattering angles of -25° and 30°, and two molecular axis directions of ϕMol = 0° and 45°, also their relative orientations such as 180° and 225°. The momentum vectors of the two ejected electrons (with energies Ee1, and Ee2) and the fragment ions (e, 2e+ ions) were detected by the triple coincidence method. For the duration of dissociation, the time of flight (TOF) of CF3+, CF2+, CF+, F+, and C+ are observed in the TOF diagram. During the dissociation of the final fragment of CF3+ ion and its electronic ground state neutral F, the momentum vector of CF3+ allows us to draw conclusions about the orientation of the molecule in the course of the collision. Finally, it was remarked that concerning molecular orientation, electrons are highly sensitive at low energy and low scattering angle.
| Published in | American Journal of Modern Physics (Volume 13, Issue 5) |
| DOI | 10.11648/j.ajmp.20241305.12 |
| Page(s) | 73-78 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Electron-Impact Ionization (EII), FDCS, Molecular Orientation, REMI and Full Perpendicular Plane
| [1] | Huels. M. A., Boudaïffa. B., Cloutier. P., Hunting. D., Sanche. L. Single, double, and multiple double strand breaks induced in DNA by 3-100 eV electrons. J Am Chem Soc. 2003 Apr 16; 125(15): 4467-77. |
| [2] | Senftleben. A., Al-Hagan. O., Pflüger. T., Ren. X., Madison. D., Dorn. A., Ullrich. J. Fivefold differential cross sections for ground state ionization of aligned H2 by electron impact. J. Chem. Phys. 133, 044302(2010). |
| [3] | Ren. X., Pflüger. T., Xu. S., Colgan. J., Pindzola. M. S., Senftleben. A., Ullrich. J., Dorn. A. Strong molecular alignment dependence of H2 electron impact ionization dynamics. Phys Rev Lett. 2012 Sep 21; 109(12): 123202. |
| [4] | Bellm. S., Lower. J., Weigold. E., Mueller. D. W. Fully Differential Molecular-Frame Measurements for the Electron-Impact Dissociative Ionization of H2. Phys. Rev. Lett. 104, 023202 (2010). |
| [5] | Colgan. J., Pindzola. M. S., Robicheaux. F. J., Kaiser. C., Murray. A. J., Madison. D. H, Differential Cross Sections for the Ionization of Oriented H2 Molecules by Electron Impact. Phys. Rev. Lett., 101(23), 233201(2008). |
| [6] | Ullrich. J., Moshammer. R., Dorn. A., Dörner. R., Schmidt. L. P. H., Böcking. H. S. B. Recoil-ion and electron momentum spectroscopy: reaction-microscopes. Rep. Prog. Phys. 66, 1463 (2003). |
| [7] | Ren. X., Pfluger. T., Weyland. M., Baek. W. Y., Rabus. H., Ullrich. J., Dorn. A. An (e, 2e + ion) study of low-energy electron-impact ionization and fragmentation of tetrahydrofuran with high mass and energy resolutions. J. Chem. Phys. 141, 134314 (2014). |
| [8] | Hossen. K., Takia. H., Hossain. M. J., Rahaman. M. M., Hossain. M. B., Arshad. H. M., Rahman. M. M. Evidence of Resonance Structure at Around 35 eV for CF2+ Ion at Low Energies Electron Impact Ionization of CF4. Jahangirnagar Physics Studies, Journal of the Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh. ISSN: 1999-6632, Volume: 23, Page: 15-26, June 2020. |
| [9] | Colgan. J., Al-Hagan. O., Madison. D. H., Kaiser. C., Murray. A. J., Pindzola. M. S., Triple differential cross sections for the electron-impact ionization of H2 molecules for equal and unequal outgoing electron energies. Phys. Rev. A, 79(5), 052704(2009). |
| [10] | Pindzola. M. S., Robicheaux. F., Loch. S. D., Colgan. J. Electron-impact ionization of H2 using a time-dependent close-coupling method. Phy. Rev. A, 73(5), 052706 (2006). |
| [11] | Pindzola. M. S., Robicheaux. F., Loch. S. D., Berengut. J. C., Topcu. T., Colgan. J., Foster. M., Griffin. D. C., Balance. C. P., Schultz. D. R., Minami. T., Badnell. N. R., Witthoeft. M. C., Plante. D. R., Mitnik. D. M., Ludlow. J. A., Kleiman. U. The time-dependent close-coupling method for atomic and molecular collision processes. J. of Phys. B: Ato., Mol. and Opt. Phys., 40(7), R39-R60, (2007). |
| [12] | Colgan. J, Pindzola. M. S., Robicheaux. F. Time-dependent close-coupling calculations of the triple-differential cross section for electron-impact ionization of hydrogen. J. Phys. Rev. A, 65(4), 042721 (2002). |
| [13] | Colgan. J, Al-Hagan. O, Madison. D. H., Murray. A. J., Pindzola. M. S. Deep interference minima in non-coplanar triple differential cross sections for the electron-impact ionization of small atoms and molecules. J. of Phys. B: A., Mol. and Opt. Phys., 42(17), 171001, (2009). |
| [14] | Hossen. K, Ren. X, Wang. E, Kumar. S. V. K., and Dorn. A. An (e, 2e+ion) study of electron-impact ionization and fragmentation of tetrafluoromethane at low energies. The European Physical Journal D (EPJD), 72: 43, 2018. |
APA Style
Hossen, K., Takia, H., Arshad, H. M., Moshiur, R., Hossain, M. B., et al. (2024). Molecular Orientation Resolved (e, 2e) Cross Sections for CF4 at 67 eV Impact Energy. American Journal of Modern Physics, 13(5), 73-78. https://doi.org/10.11648/j.ajmp.20241305.12
ACS Style
Hossen, K.; Takia, H.; Arshad, H. M.; Moshiur, R.; Hossain, M. B., et al. Molecular Orientation Resolved (e, 2e) Cross Sections for CF4 at 67 eV Impact Energy. Am. J. Mod. Phys. 2024, 13(5), 73-78. doi: 10.11648/j.ajmp.20241305.12
AMA Style
Hossen K, Takia H, Arshad HM, Moshiur R, Hossain MB, et al. Molecular Orientation Resolved (e, 2e) Cross Sections for CF4 at 67 eV Impact Energy. Am J Mod Phys. 2024;13(5):73-78. doi: 10.11648/j.ajmp.20241305.12
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Download@article{10.11648/j.ajmp.20241305.12,
author = {Khokon Hossen and Humaira Takia and Hossain Mohammad Arshad and Rahman Moshiur and Md. Bellal Hossain and Muhammad Masudur Rahaman},
title = {Molecular Orientation Resolved (e, 2e) Cross Sections for CF4 at 67 eV Impact Energy
},
journal = {American Journal of Modern Physics},
volume = {13},
number = {5},
pages = {73-78},
doi = {10.11648/j.ajmp.20241305.12},
url = {https://doi.org/10.11648/j.ajmp.20241305.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20241305.12},
abstract = {In this investigation, the fully differential cross sections (FDCS) for ionization of electron impact at low energy (E0 = 67 eV) were measured for the specific orientations of the molecules and around it axis. In the full perpendicular plane (FPP), the FDCS for CF4 were experimentally figured out by using reaction microscope (REMI) for different kinematics such as two ejection electron energies of 5 eV and 8 eV, scattering angles of -25° and 30°, and two molecular axis directions of ϕMol = 0° and 45°, also their relative orientations such as 180° and 225°. The momentum vectors of the two ejected electrons (with energies Ee1, and Ee2) and the fragment ions (e, 2e+ ions) were detected by the triple coincidence method. For the duration of dissociation, the time of flight (TOF) of CF3+, CF2+, CF+, F+, and C+ are observed in the TOF diagram. During the dissociation of the final fragment of CF3+ ion and its electronic ground state neutral F, the momentum vector of CF3+ allows us to draw conclusions about the orientation of the molecule in the course of the collision. Finally, it was remarked that concerning molecular orientation, electrons are highly sensitive at low energy and low scattering angle.
},
year = {2024}
}
TY - JOUR T1 - Molecular Orientation Resolved (e, 2e) Cross Sections for CF4 at 67 eV Impact Energy AU - Khokon Hossen AU - Humaira Takia AU - Hossain Mohammad Arshad AU - Rahman Moshiur AU - Md. Bellal Hossain AU - Muhammad Masudur Rahaman Y1 - 2024/11/28 PY - 2024 N1 - https://doi.org/10.11648/j.ajmp.20241305.12 DO - 10.11648/j.ajmp.20241305.12 T2 - American Journal of Modern Physics JF - American Journal of Modern Physics JO - American Journal of Modern Physics SP - 73 EP - 78 PB - Science Publishing Group SN - 2326-8891 UR - https://doi.org/10.11648/j.ajmp.20241305.12 AB - In this investigation, the fully differential cross sections (FDCS) for ionization of electron impact at low energy (E0 = 67 eV) were measured for the specific orientations of the molecules and around it axis. In the full perpendicular plane (FPP), the FDCS for CF4 were experimentally figured out by using reaction microscope (REMI) for different kinematics such as two ejection electron energies of 5 eV and 8 eV, scattering angles of -25° and 30°, and two molecular axis directions of ϕMol = 0° and 45°, also their relative orientations such as 180° and 225°. The momentum vectors of the two ejected electrons (with energies Ee1, and Ee2) and the fragment ions (e, 2e+ ions) were detected by the triple coincidence method. For the duration of dissociation, the time of flight (TOF) of CF3+, CF2+, CF+, F+, and C+ are observed in the TOF diagram. During the dissociation of the final fragment of CF3+ ion and its electronic ground state neutral F, the momentum vector of CF3+ allows us to draw conclusions about the orientation of the molecule in the course of the collision. Finally, it was remarked that concerning molecular orientation, electrons are highly sensitive at low energy and low scattering angle. VL - 13 IS - 5 ER -
Department of Physics and Mechanical Engineering, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh
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