109 research outputs found
Program for experimental investigations of the mechanisms for the emission of coherent radiation by relativistic electrons with energies of 10-500 MeV in oriented crystals
A program of experimental investigations of the mechanisms for the emission of coherent radiation by electrons in periodic structures is proposed. The program is aimed at developing sources of energy-tunable quasimonochromatic x radiation and y radiationyesBelgorod State Universit
Using mosaic crystals for the generation of intense X-ray beams
The parametric X-ray (PXR) yield due to 500-MeV electrons in a 2-mm-thick diamond crystal with a mosaicity angle of ~0.2 mrad has been studied. It is shown that the mosaic crystal structure leads to a significant (about fourfold) increase in the PXR yield doe to the contribution of diffracted bremsstrahlung radiationye
Estimation of Crystal Sample Structure by Means of Fast Electron Radiation
An analysis is made of the dependence of the characteristics of X-ray radiation arising during the passage of fast electrons through the crystal on the quality of the internal structure of the sampleyesBS
Estimation of microblock sizes in mosaic crystals according to fast electron radiation characteristics
The possibilities of a previously proposed technique for determining the characteristic sizes of microblocks in mosaic aα-class crystals have been analyzed. Determination is performed according to the ratio between the measured and calculated values for the diffraction suppression of the fixed-energy bremsstrahlung yield. The limits of applicability of the technique have been revealedyesBelgorod State Universit
Experimental observation of parametric X-ray radiation directed along the propagation velocity of relativistic electrons in a tungsten crystal
Parametric X-ray radiation (PXR) due to dynamic diffraction of relativistic electrons is experimentally observed at small angles to the propagation velocity of electrons in a tungsten crystal. The specific features of the experimental method are described, and forward PXR reflections from two crystallographic planes of tungsten are reliably measuredyesBelgorod State Universit
Structure and diffusion processes in laminated composites of a Cu-Ti system
Characteristics of diffusion transformations in a multi-layer composite of a Cu-Ti system, which was produced by high-temperature diffusion welding followed by rolling at room temperature, are reportedye
The light nuclei spin structure from hadronic channels at intermediate energies
The main goal of the investigation of the reaction induced by the polarized deuterons is to establish the nature of 2N and 3N forces, the role of the relativistic effects and nonucleon degrees of freedomyesBelgorod State Universit
Diffraction of real and virtual photons in a pyrolytic graphite crystal as source of intensive quasimonochromatic X-ray beam
A series of experiments on the parametric X-rays radiation (PXR) generation and radiation soft component diffraction of relativistic electrons in pyrolytic graphite (PG) crystals have been carried out at the Tomsk synchrotronyesBelgorod State Universit
First results on the measurements of the proton beam polarization at internal target at Nuclotron
The spin program at NICA using SPD and MPD requires high intensity polarized proton beam with high value of the beam polarization. First results on the measurements of the proton beam polarization performed at internal target at Nuclotron are reported. The polarization of the proton beam provided by new source of polarized ions has been measured at 500 MeV using quasielastic proton-proton scattering and DSS setup at internal targe
Dp breakup reaction investigation using polarized and unpolarized deuteron beam
Deuteron Spin Structure (DSS) collaboration program is aimed on few nucleon correlations investigation using unpolarized and polarized deuteron beam at intermediate energy range. Data of the dp breakup reaction have been obtained at energy range from 300 - 500 MeV of deuteron energy for various detector configurations in region where few nucleon correlations and relativistic effects can play significant rol
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