Browsing Elektronik ve Otomasyon Bölümü by Issue Date
Now showing items 1-20 of 27
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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 mass attenuation coefficients by Si(Li), NaI(Tl) and Cd(Tl) detectors
(Transworld Research Network, 2012-01-01)Mass attenuation coefficients of the some elements were determined for two photon energies using different three detectors. The samples were irradiated using 10 mCi Cd-109 and 100 mCi Am-241 radioactive point sources. ... -
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 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 ... -
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 ... -
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 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 ... -
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 ... -
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 ... -
Measurements of K shell absorption jump factors and jump ratios using EDXRF technique
(2015-04-10)In the present work, the K-shell absorption jump factors and jump ratios for 30 elements between Ti (Z = 22) and Er (Z = 68) were measured by energy dispersive X-ray fluorescence (EDXRF) technique. The jump factors and ... -
Studies on effective atomic numbers, electron densities from mass attenuation coefficients near the K edge in some samarium compounds
(Elsevier Ltd., 2015-07)The effective atomic numbers and electron densities of some samarium compounds were determined using the experimental total mass attenuation coefficient values near the K edge in the X-ray energy range from 36.847 up to ... -
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 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 ... -
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) -
The excitation probabilities of Kα,β and Lα1,2 for some elements in 56≤Z≤68 at 59.54 keV
(Elsevier, 2016-02-01)The Kα,β and Lα1,2 excitation probabilities for some elements in 56≤Z≤68 at 59.54 keV were obtained using a Si(Li) detector with a multichannel analyzer. It is the first time that the Kα,β and Lα1,2 excitation probabilities ... -
Study of absorption parameters around the K edge for selected compounds of Gd
(Wiley, 2016-02-11)The K shell absorption jump ratios, jump factors, effective atomic numbers, and electron densities were derived from the measured total mass attenuation coefficient using an energy dispersive X-ray fluorescence spectrometer ... -
Why Do We Need Nuclear Energy in Turkey?
(IPCAP 2016, 2016-02-27)Nuclear energy is the energy in the nucleus, or core, of an atom. This energy can be released as heat from a chain reaction in a radioactive element such as uranium. Although Turkey has rich uranium reserves, Turkey has ... -
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, ... -
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. ...
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