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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 ...
Dynamic polarization effects on the angular distributions of protons channeled through carbon nanotubes in dielectric media
(Physical Review A, 2008)
The best level of ordering and straightening of carbon nanotube arrays is often achieved when they are grown in a dielectric matrix, so such structures present the most suitable candidates for future channeling experiments ...
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 ...
On the dechanneling of protons in Si [110]
(European Physical Journal B. Condensed Matter and Complex Systems, 2003)
In the present work; the dechanneling of protons in Si [110] is studied combining theoretical Monte-Carlo and phenomenological simulation results in the energy range E-p = 1.8-2.4 MeV. The applicability of a Gompertz type ...
Theory of rainbows in thin crystals: The explanation of ion channeling applied to Ne10+ ions transmitted through a LT 100 GT Si thin crystal
(Physical Review B: Condensed Matter and Materials Physics, 2000)
The theory of crystal rainbows is presented. It enables the generation and full explanation of the angular distribution of ions transmitted through thin crystals. The angular distribution of the transmitted ions is generated ...
Systematic effects in luminosity measurement at ILC
(Analele Universitatii de Vest din Timisoara, Seria Fizica, 2007)
In order to achieve required precision of luminosity measurement at the International Linear Collider (ILC), that is of order of 10-4, systematic effects have to be understood at the level of this precision. Apart from ...
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, ...
Angular distributions of 7 TeV protons axially channeled through the thin bent (100) Si crystal
(Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2006)
We have studied theoretically angular distributions of relativistic protons axially channeled through the thin bent LT 100 GT Si crystal. The proton energy is 7 TeV, the thickness of the crystal is 1 mm, which corresponds ...
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 ...
Forward calorimetry at ILC
(Analele Universitatii de Vest din Timisoara, Seria Fizica, 2007)
The very forward region of a detector at the International Linear Collider (ILC) is particularly challenging area for instrumentation. Forward calorimeters should provide luminosity measurement with the high precision, ...