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Angular and spatial distributions of protons channeled in a bent and radially deformed single-wall boron-nitride nanotubes
(Romanian Reports in Physics, 2019)
This study is devoted to the angular and spatial distribution of protons channeling through a bent and radially deformed single-wall boron-nitride nanotubes (SWBNNTs). These nanotubes are more thermal and chemical stable ...
Zero-degree focusing of channeled ions and crystal rainbows
(Physics Letters A, 2001)
We analyze here theoretically the connection between the effect of zero-degree focusing of channeled ions and the crystal rainbow effect. The calculations were performed for Ne10+ ions and a LT 100 GT Si thin crystal. The ...
Channeling star effect with bundles of carbon nanotubes
(Physics Letters A, 2006)
We report here about occurrence of the channeling star effect in the transmission of high energy protons through the bundles of (10. 10) single-wall carbon nanotubes, when the beam divergence is larger then the critical ...
Rainbows with a tilted 〈111〉 Si very thin crystal
(Physics Letters A, 2002)
The angular distributions of protons channeled in a tilted (111) Si very thin crystal together with the corresponding rainbow patterns are considered. The proton energy is 10 MeV while the crystal thickness is 121.1 nm, ...
Determination of parameters for channeling of protons in SiC polytype crystals in the backscattering geometry
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2001)
Energy spectra of protons channeling along the (0001) axis of several SiC polytype crystals (namely 4H, 6H, 15R, 21R) in the energy region E-p = 1.7-2.5 MeV, in the backscattering geometry, were taken and analyzed. Computer ...
A study of the dechanneling of protons in SiC polytype crystals in the energy range Ep=400-650 keV
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2004)
In the present work, the energy spectra of protons channeled along the (0 0 0 1) axis of SiC polytype crystals (namely 4H and 6H) in the energy range E-P = 400-650 keV, in the backscattering geometry, were taken and analyzed. ...
Proton channeling through long chiral carbon nanotubes: The rainbow route to equilibration
(Physics Letters A, 2008)
In this work we investigate the rainbows appearing in channeling of 1 GeV protons through the long (11, 9) single-wall carbon nanotubes. The nanotube length is varied from 10 to 500 pm. The angular distributions of channeled ...
Probing high-energy ion-implanted silicon by micro-Raman spectroscopy
(Journal of Raman Spectroscopy, 2014)
The effect of ion implantation (4MeV(12)C(2+), 5MeV(16)O(2+), and 8MeV(28)Si(2+)) on [110] silicon wafers in channeling and random orientation is investigated by micro-Raman spectroscopy. The profiles were measured using ...
Gompertz type dechanneling functions for protons in 〈1 0 0〉, 〈1 1 0〉 and 〈1 1 1〉 Si crystal channels
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2007)
In this work the energy dependences of the Gompertz type sigmoidal dechanneling function parameters for protons in LT 1 0 0 GT , LT 1 1 0 GT and LT 1 1 1 GT Si crystal channels is investigated theoretically. The proton ...
Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2007)
We investigate the influence of the effect of dynamic polarization of the carbon atom valence electrons on the angular distributions of protons channeled in (6, 4)"(11, 9) double-wall carbon nanotubes. The proton velocities ...