Channeling of Protons Through Carbon Nanotubes
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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 µm. 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 are 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 achiev...ed 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.
Izvor:
Journal of Physics: Conference Series, 2008, 84, 146-146Napomena:
- Publications of the Astronomical Observatory of Belgrade Series, 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: 0373-3742
WoS: 000269314500036
Scopus: 2-s2.0-65249160568
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Institucija/grupa
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/123456789/6818 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 µm. 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 are 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 IS - 84 SP - 146 EP - 146 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 µm. 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 are 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", number = "84", pages = "146-146", 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(84), 146-146. 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;(84):146-146. 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, no. 84 (2008):146-146, https://doi.org/10.1088/1742-6596/133/1/012015 . .