scholarly journals The Semi-Empirical Determination of K X-ray, KLL Auger Line and L subshell level widths for 3d transition elements at 59.5 keV

2019 ◽  
pp. 57-64 ◽  
Author(s):  
Kadriye Kündeyi ◽  
Nuray Küp Aylıkcı
Keyword(s):  
Transition Elements ◽  
Auger Line ◽  
X Ray ◽  
Empirical Determination ◽  
Semi Empirical

Semi-empirical determination of the long-range molecular states dissociating to C(3PJ)+O(3PJ′)

1989 ◽  
Vol 134 (1) ◽  
pp. 7-18 ◽  
Author(s):  
B. Bussery ◽  
M.E. Rosenkrantz ◽  
D.D. Konowalow ◽  
M. Aubert-frécon
Keyword(s):  
Long Range ◽  
Empirical Determination ◽  
Semi Empirical

Intraionic Structure of HS04- and Alkali Cation Configuration in Molten NaHS04 and KHS04

1994 ◽  
Vol 49 (7-8) ◽  
pp. 785-789 ◽  
Author(s):  
K. Fukushima ◽  
M. Murofushi ◽  
M . Oki ◽  
K. Igarashi ◽  
J. Mochinaga ◽  
...  
Keyword(s):  
Molten Salts ◽  
Molecular Orbital Calculations ◽  
Distorted Tetrahedron ◽  
X Ray Diffraction ◽  
X Ray ◽  
Bond Lengths ◽  
Semi Empirical ◽  
Polyatomic Anion ◽  
Short Range Structure

Abstract The short range structure of molten NaHSO4(I) and KHSO4(II) was estimated by X-ray diffraction. The polyatomic anion, HSO4-, in both molten salts was found to have a distorted tetrahedral structure in which the bond lengths of S-O and S-OH were 1.45 Å and 1.53 Å in (I) and 1.46 Å and 1.56 Å in (II), respectively. The coordination number of the Na+ or K+ around the HSO4- was evaluated to be about unity. The semi-empirical molecular orbital calculations by the MNDO-MOPAC method were applied to the determination of the intraionic structure of the H S 0 4 and the bond lengths of S-O and S -OH were computed to be 1.528 Å and 1.666 Å, respectively, supporting qualitatively that the HSO4- forms a rather distorted tetrahedron.

Semi-empirical determination of radiative parameters for atomic nickel

2016 ◽  
Vol 464 (1) ◽  
pp. 1127-1136 ◽  
Author(s):  
J. Ruczkowski ◽  
M. Elantkowska ◽  
J. Dembczyński
Keyword(s):  
Empirical Determination ◽  
Semi Empirical

The accuracy of X-ray diffraction methods for determining mineral mixtures

1985 ◽  
Vol 49 (353) ◽  
pp. 531-538 ◽  
Author(s):  
Covadonga Brime
Keyword(s):  
Internal Standard ◽  
Diffraction Method ◽  
Mass Attenuation Coefficient ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sample Composition ◽  
Empirical Determination ◽  
Mineral Mixtures ◽  
Mass Attenuation

AbstractAn X-ray diffraction method has been successfully applied to the quantitative determination of mineral mixtures. The absorptive properties of the samples and the number of components determine the analytical procedure to be used. The methods described (external standard plus empirical determination of the mass attenuation coefficient) provides an accurate and rapid alternative to the direct measurement of the mass attenuation, Compton diffusion or internal standard methods. The relative accuracy obtained is of the order of 10% at the 0.1% level, independent of the sample composition.

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