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Now showing items 1-10 of 12
Rainbows with Crystals and Nanotubes
(Nanoscience and Nanotechnology Letters, 2012)
This review paper is devoted to the crystal rainbow effect, which occurs in ion channeling in crystals and nanotubes. We begin with a description of crystal rainbows. Then, we analyze the evolution of the angular distribution ...
Energy loss distributions of 7 TeV protons channeled in a bent silicon crystals
(Nuclear technology and radiation protection, 2013)
The energy loss distributions of relativistic protons axially channeled through the bent LT 100 GT Si crystals, with the constant curvature radius, R = 50 m, are studied here. The proton energy is 7 TeV and the thickness ...
Focusing Properties of a Square Electrostatic Rainbow Lens Doublet
(Nuclear technology and radiation protection, 2015)
This is a study on the properties of a square electrostatic rainbow lens doublet. The said optical element consists of two square electrostatic rainbow lenses with the second lens axially rotated for 45 degrees with respect ...
Deflection of a 100-MeV positron beam by repeated reflections in thin crystals
(JETP Letters / Journal of Theoretical and Experimental Physics, 2014)
The phenomenon of the deflection of a charged particle beam due to channeling in a bent crystal is thoroughly investigated and successfully applied for the extraction of the beam in high-energy accelerators, at the energies ...
Radiation dose determines the method for quantification of DNA double strand breaks
(Anais de Academia Brasileira de Ciencias, 2016)
Ionizing radiation induces DNA double strand breaks (DSBs) that trigger phosphorylation of the histone protein H2AX (gamma H2AX). Immunofluorescent staining visualizes formation of gamma H2AX foci, allowing their quantification. ...
Spatial rainbows and catastrophes in transmission of protons through electrostatic octopole lens
(Nuclear Technology and Radiation Protection, 2018)
This paper considers the transmission of the initial parallel proton beam with kinetic energy of 10 keV through the electrostatic oelopole lens. The spatial rainbows and corresponding proton distributions are calculated ...
Crystal rainbows
(Journal of Electron Spectroscopy and Related Phenomena, 2003)
This review is devoted to ion transmission through axial channels of thin crystals. In this process the rainbows occur. The effect is called the crystal rainbow effect. We shall describe its origin and present the experiments ...
Doughnuts with a 〈110〉 very thin Si crystal
(Journal of Electron Spectroscopy and Related Phenomena, 2003)
This study is devoted to the angular distributions and transmission patterns of 10 MeV protons channeled in a tilted LT 110 GT very thin Si crystal of thickness 100 nm. The tilt angle of the crystal is varied from zero up ...
Rainbow Lenses
(Advances in Imaging and Electron Physics, 2014)
This review paper is devoted to transmission of protons through rainbow lenses, being novel ion beam optical elements analogous to crystal channels. We begin with a brief description of the crystal rainbow effect, which ...
Rainbow effect in channeling of high energy protons in (10,0) single-wall carbon nanotubes
(Materials Science Forum, 2005)
We investigate theoretically the angular distributions and the rainbows of 1 GeV protons channeled in the ropes of (10, 0) single-wall carbon nanotubes. The rope length is varied between 0.53 and 5.29 mu m. The angular ...