Browsing Elektronik ve Otomasyon Bölümü by Title
Now showing items 1-20 of 27
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Basic sciences agonize in Turkey!
(IOP Science, 2016-02-27)In this study, changes from past to present in the departments of physics, chemistry, biology and mathematics, which are considered as the basic sciences in Turkey, are shown. The importance of basic science for the country ... -
Chemical Effect on the Atomic and Molecular Cross Sections of Some Ce Compounds Near the K Edge
(1. International Turkic World Conference on Chemical Sciences and Technologies, 2015-11-01) -
Chemical effect on the K shell absorption parameters of some selected cerium compounds
(IOP Publishing Ltd and Sissa Medialab srl, 2016-08-08)In this study, the photoelectric cross section values of Ce, CeCl3.7H2O, Ce2(SO4)3, Ce(OH)4 and Ce2O3 samples were measured in the energy range from 31.82 keV up to 51.70 keV by adopting in narrow beam geometry. Using these ... -
Determination of K shell absorption jump factors and jump ratios of 3d transition metals by measuring K shell fluorescence parameters
(Elsevier Ltd., 2015-01-01)Energy dispersive X-ray fluorescence technique (EDXRF) has been employed for measuring K-shell absorption jump factors and jump ratios for Ti, Cr, Fe, Co, Ni and Cu elements. The jump factors and jump ratios for these ... -
Determination of K shell absorption parameters for some lanthanides using the X-ray attenuation method
(nrcresearch press, 2015-07-27)The total attenuation cross section at the K edge, absorption jump ratio, jump factor, Davisson–Kirchner ratio, and oscillator strength parameters for the K shell were determined by measuring the total attenuation cross ... -
Determination of K Shell Fluorescence Parameters for Some Elements in the Atomic Number Range 50≤Z≤60
(IPCAP 2016, 2016-02-27)The fluorescence cross sections, fluorescence yields, level widths and intensity ratio for some elements in the atomic range 50≤Z≤60 were measured. The targets were excited using photons of 59.54 keV emitted from an Am-241 ... -
Determination of K-Li Sub-Shell, Total K-L and Total K-M shell Vacancy Transfer Probabilities for Europium, Gadolinium and Terbium
(IPCAP 2016, 2016-02-27)There are different ways to produce a vacancy in an atom such as photoelectric effect, Compton scattering, triplet production, charged particle Coulomb interaction, internal conversion, electron capture, positron annihilation ... -
Determination of K-shell absorption jump factors and jump ratios for La2O3, Ce and Gd using two different methods
(2015-02-01)The K shell absorption jump factors and jump ratios for La2O3, Ce and Gd samples have been determined using the gamma or X-ray attenuation and EDXRF methods. It is the first time that the K shell absorption jump factor and ... -
Determination of Kα,β excitation factors in thin target for selected elements from Y to Te at 59.54 keV excitation energy
(Elsevier, 2015-10-22)The paper presents the first measurements of the Kα and Kβ excitation factors for some selected elements from Y to Te. To determine the Kα and Kβ excitation factors, the experimental values of K shell X-ray production cross ... -
Determination of L X-ray fluorescence parameters for Ho, Lu, W, Hg and Bi
(Elsevier Ltd, 2014-07-01)In this work, L X-ray fluorescence cross sections, L sub-shell fluorescence yields and level widths and radiative vacancy transfer probabilities of L sub-shells to Mi, Ni and Oi sub-shells were measured for the elements ... -
Experimental values of K to Li sub-shell, K to L, and K to M shell vacancy transfer probabilities for some rare earth elements
(Elsevier, 2016-09-01)The K to Li (i=2,3), K to L, and K to M shell vacancy transfer probabilities for La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy and Er were determined at 59.54 keV using a reflection geometry. The measurements were performed using an ... -
Investigation of chemical effect on the absorption parameters for some selected indium complex at 59.54 keV photon energy
(IOP Science, 2016-02-27)In this work, the mass attenuation coefficients, molecular, atomic and electronic cross sections, effective atomic numbers and electron densities of some selected indium complexes such as C5H10InNO9, C3H6InNO9 and C9H10InNO9, ... -
K to L shell vacancy transfer probabilities and Auger electron emission ratios for elements in the atomic range 30 ≤ Z ≤ 58
(nrc research press, 2016-05-04)The K to L shell vacancy transfer probabilities for some elements in the atomic range 30 ≤ Z ≤ 58 were determined using the semi-empirical values of K shell fluorescence yield and the experimental values of Kβ/Kα X-ray ... -
Kinematic coefficient ratios, anisotropy parameters, and polarization degrees of L3 X-ray transitions of Bi, Pb, Ta, Lu, and Yb
(NRC Research Press, 2015-03-11)The anisotropy parameter values β of the L shell fluorescent X-rays (Lι (L3-M1), Lβ6 (L3-N1), Lα1,2 (L3-M5,4) and Lβ2,15 (L3-N5,4) of Bi, Pb, Ta, Lu, and Yb excited by 22.6 keV photons were measured. These values were used ... -
Measurement of L subshell fluorescence cross sections and intensity ratios of heavy elements at 22.6keV
(Elsevier Ltd., 2011-06-01)The L X-ray fluorescence cross sections (σL1, σLα, σσLη, σLΒ, σLΒ6, σLΒ2,4,15, σLΒ1,3, σLγ, σLγ1, σLγ2,3,6,8, σLγ4,4' and σLγ5) and ILα/ILi (i=l, η, Β6, Β2,4,1,5, Β1,3, γ, γ1, γ2,3,6,8, γ4,4' and γ5 intensity ratios for ... -
Measurement of L subshell fluorescence yields for high-Z elements excited by 22.6keV photons
(Elsevier Ltd., 2012-03-01)The σ L1, σ L2 and σ L3 subshell X-ray production cross sections for U, Th, Bi, Pb, Tl, Hg, Au, Pt, Os, W, Ta, Lu, Yb and Er have been measured at 22.6keV incident photon energy. The measurements were performed using a ... -
Measurement of L3 Sub-Shell to M, N, O Shell Radiative Vacancy Transfer Probabilities for Ho, Lu and Hg Elements
(IPCAP 2016, 2016-02-27)The radiative vacancy transfer probabilities from L3 sub-shell to M, N, O sub-shells were measured for the elements Ho, Lu and Hg. To obtain related parameters, we used 59.54 keV gamma photons of 241Am radioactive source. ... -
Measurement of Li X-ray fluorescence production cross sections and intensity ratios of some elements at 59.54 keV
(NRC Research Press, 2015-02-13)The Li (i = l, α, β, γ) X-ray production cross section and Lα/Ll, Lα/Lβ, Lα/Lγ, Ll/Lβ, Ll/Lγ, and Lβ/Lγ intensity ratio values for Yb, Ta, W, Hg, Tl, Pb, Bi, Th, and U have been determined using an excitation geometry at ... -
Measurement of magnetic quadrupole-electric dipole mixing ratios and angular distribution parameters in atomic inner-shell transitions
(Materials Science and Technology Conference and Exhibition 2013, MS and T 2013, 2013-10-27)In studies of the angular distribution of the magnetic L 3-subshell X-ray transitions it has been generally assumed that observed radiations consist of pure electric dipole transitions and contributions from higher-order ...
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