Channeling of protons through carbon nanotubes
Апстракт
We investigate how dynamic polarization of carbon valence electrons influences both the angular and spatial distributions of protons channeled in a (11, 9) single-wall carbon nanotube placed in vacuum and in different dielectric media. Proton speeds between 3 and 10 a.u., corresponding to energies of 0.223 and 2.49 MeV, are chosen with the nanotube length varied between 0.1 and 1 mu m. In all performed calculations we describe the interaction between proton and carbon atoms on the nanotube wall using the Doyle-Turner potential. The image force on a proton is calculated using a two-dimensional hydrodynamic model for the dynamic response of the nanotube valence electrons and the dielectric media surrounding the nanotube. The angular distributions of channeled protons axe generated using a computer simulation method which solves the proton equations of motion in the transverse plane numerically. The best level of ordering and straightening of carbon nanotube arrays is often achieved when ...they are grown in a dielectric matrix. Consequently, we investigate here how the dynamic polarization of carbon valence electrons in the presence of various surrounding dielectric media affects the angular distributions of protons channeled through (11, 9) single-wall carbon nanotubes. Our analysis shows that the inclusion of the image interaction, gives rise to a number of rainbow maxima in the corresponding angular and spatial distribution. Our analysis shows that the presence of dielectric media surrounding the nanotube influences the positions and appearance of rainbows in the corresponding angular and spatial distributions. In addition, we analyze the possibility of production of nano-sized beams by carbon nanotubes.
Извор:
Journal of Physics: Conference Series, 2008, 133Напомена:
- 24th Summer School and International Symposium on Physics of Ionized Gases, Aug 25-29, 2008, Novi Sad, Serbia
DOI: 10.1088/1742-6596/133/1/012015
ISSN: 1742-6588
WoS: 000265684100015
Scopus: 2-s2.0-65249160568
Колекције
Институција/група
VinčaTY - CONF AU - Borka, Duško AU - Mowbray, Duncan J. AU - Mišković, Zoran L. AU - Petrović, Srđan M. AU - Nešković, Nebojša B. PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6795 AB - We investigate how dynamic polarization of carbon valence electrons influences both the angular and spatial distributions of protons channeled in a (11, 9) single-wall carbon nanotube placed in vacuum and in different dielectric media. Proton speeds between 3 and 10 a.u., corresponding to energies of 0.223 and 2.49 MeV, are chosen with the nanotube length varied between 0.1 and 1 mu m. In all performed calculations we describe the interaction between proton and carbon atoms on the nanotube wall using the Doyle-Turner potential. The image force on a proton is calculated using a two-dimensional hydrodynamic model for the dynamic response of the nanotube valence electrons and the dielectric media surrounding the nanotube. The angular distributions of channeled protons axe generated using a computer simulation method which solves the proton equations of motion in the transverse plane numerically. The best level of ordering and straightening of carbon nanotube arrays is often achieved when they are grown in a dielectric matrix. Consequently, we investigate here how the dynamic polarization of carbon valence electrons in the presence of various surrounding dielectric media affects the angular distributions of protons channeled through (11, 9) single-wall carbon nanotubes. Our analysis shows that the inclusion of the image interaction, gives rise to a number of rainbow maxima in the corresponding angular and spatial distribution. Our analysis shows that the presence of dielectric media surrounding the nanotube influences the positions and appearance of rainbows in the corresponding angular and spatial distributions. In addition, we analyze the possibility of production of nano-sized beams by carbon nanotubes. C3 - Journal of Physics: Conference Series T1 - Channeling of protons through carbon nanotubes VL - 133 DO - 10.1088/1742-6596/133/1/012015 ER -
@conference{ author = "Borka, Duško and Mowbray, Duncan J. and Mišković, Zoran L. and Petrović, Srđan M. and Nešković, Nebojša B.", year = "2008", abstract = "We investigate how dynamic polarization of carbon valence electrons influences both the angular and spatial distributions of protons channeled in a (11, 9) single-wall carbon nanotube placed in vacuum and in different dielectric media. Proton speeds between 3 and 10 a.u., corresponding to energies of 0.223 and 2.49 MeV, are chosen with the nanotube length varied between 0.1 and 1 mu m. In all performed calculations we describe the interaction between proton and carbon atoms on the nanotube wall using the Doyle-Turner potential. The image force on a proton is calculated using a two-dimensional hydrodynamic model for the dynamic response of the nanotube valence electrons and the dielectric media surrounding the nanotube. The angular distributions of channeled protons axe generated using a computer simulation method which solves the proton equations of motion in the transverse plane numerically. The best level of ordering and straightening of carbon nanotube arrays is often achieved when they are grown in a dielectric matrix. Consequently, we investigate here how the dynamic polarization of carbon valence electrons in the presence of various surrounding dielectric media affects the angular distributions of protons channeled through (11, 9) single-wall carbon nanotubes. Our analysis shows that the inclusion of the image interaction, gives rise to a number of rainbow maxima in the corresponding angular and spatial distribution. Our analysis shows that the presence of dielectric media surrounding the nanotube influences the positions and appearance of rainbows in the corresponding angular and spatial distributions. In addition, we analyze the possibility of production of nano-sized beams by carbon nanotubes.", journal = "Journal of Physics: Conference Series", title = "Channeling of protons through carbon nanotubes", volume = "133", doi = "10.1088/1742-6596/133/1/012015" }
Borka, D., Mowbray, D. J., Mišković, Z. L., Petrović, S. M.,& Nešković, N. B.. (2008). Channeling of protons through carbon nanotubes. in Journal of Physics: Conference Series, 133. https://doi.org/10.1088/1742-6596/133/1/012015
Borka D, Mowbray DJ, Mišković ZL, Petrović SM, Nešković NB. Channeling of protons through carbon nanotubes. in Journal of Physics: Conference Series. 2008;133. doi:10.1088/1742-6596/133/1/012015 .
Borka, Duško, Mowbray, Duncan J., Mišković, Zoran L., Petrović, Srđan M., Nešković, Nebojša B., "Channeling of protons through carbon nanotubes" in Journal of Physics: Conference Series, 133 (2008), https://doi.org/10.1088/1742-6596/133/1/012015 . .