8 research outputs found
Contribution of Omega (782) Resonance on the Response Functions for d (e, e′π-) pp Reaction
In present work we study the effect of the Omega (ω (782)) resonance on the response functions for the incoherent negative pion electroproduction form the deuteron at different values for the four-momentum transfers squared (K2) and the virtual photon lab energy (k0lab). The study is carried out in the impulse approximation (IA) i.e. the final state interactions are neglected. The elementary amplitude for pion electroproduction is taken from the MAID-2007 model. © 2018 Author(s).The author is grateful to Al-Azhar University Faculty of Science Physics Department Assuit branch for financial support and the authors gratefully acknowledge the technical support and scientific equipment provided by the Ural Center for Shared Use “Modern Nanotechnology” (SNSM Ural Federal University, Yekaterinburg, Russia
Effect of Omega(782) resonance on the response functions for d(e,e’π+)nn reaction
In the present work we study the effect of the Omega ( ω(782) ) resonance on the response functions for the incoherent positive pion electroproduction on the deuteron at different values of the squaredfour-momentum transfers (Q 2) and the virtual photon lab energy ( klab0). The study is carried out in the impulse approximation (IA), i.e. the final state interactions are neglected. The elementary amplitude for pion electroproduction is taken from the MAID-2007 model. The effect seems to be very small and slightly increases with increasing virtual photon lab energy. © 2018. All Rights Reserved
Optical properties and energy band parameters of luminescent CaMoO 4 :Bi ceramics
We studied the role of intrinsic defects of matrix and Bi dopant in the formation of optical properties and energy structure of CaMoO 4 :Bi ceramic. Non-elementary luminescence was detected in a pure CaMoO 4 matrix due to radiative transitions in intrinsic vacancy-type defects, which are associated with non-stoichiometry in calcium. The experiment showed that Bi ions act as quenchers of luminescence. © Published under licence by IOP Publishing Ltd.The work has been funded by the Ministry of (Governmenttask№3.1485.2017/4.6)
TEMPERATURE BEHAVIOR OF THE ABSORPTION EDGE IN BI-IMPLANTED HONGAN SILICA GLASS
The effect of thermal and structural disorder on the electronic structure of glass silicon dioxide (Hongan Silica Glass) irradiated with 30 KeV bismuth ions Φ = 1× 1017 cm-2 is in-vestigated by the McPherson VuVAS 1000PL VUV spectrometer in the 120-500 nm wave-length range
BISMUTH IONS INFLUENCE ON THE LUMINESCENCE OF SCHEELITE-LIKE MOLYBDATE CALCIUM
Scheelite-like oxides of the ABO4 type can be used as materials for lasers, phosphors, etc [1]. We studied the optical properties of CaMoO4:Bi ceramics, the role of the Bi dopant in the formation of the energy structure. Adding Bi affects energy structure of СаMoO4 by changing it is energy gap and leading to non-elementary luminescence quenching.Работа профинансирована Министерством Образования и Науки Российской Федерации (Правительственное задание №3.1485.2017/4.6)
LUMINESCENCE OF RADIATION DEFECTS IN Bi IMPLANTED SILICA GLASS
The photoluminescence of silica glass with implanted Bi ions is investigated by lumines-cence spectrometer PerkinElmer LS 55. The goal of the work was to study the optically active defects arising during the implantation process Bi ions in silica glass KUVI
OPTICAL PROPERTIES OF SIO2 GLASSES IMPLANTED WITH BISMUTH IONS
Optically transparent SiO2 glasses were implanted in a pulsed mode with 30 keV bismuth ions with different doses. The depth of penetration of ions into the studied SiO2 samples was estimated using the SRIM software package. Optical absorption spectra were recorded on a Lambda 35 spectrophotometer