An experimental study on chemical shifts and X-ray intensity ratios.

In this study, full widths at half maximum (FWHM), asymmetry indexes, chemical shifts (ΔE) and Kβ-to-Kα X-ray intensity ratios of some pure metals (Mn, Fe, Cu and Zn) and some of their oxidized compounds (MnO, FeO, FeO, CuO and ZnO) were investigated. The samples were excited by 59.54 keV photons emitted from aAm radioisotopes source and characteristic K X-rays emitted from the samples were counted by a Si(Li) detector.

Albedo factors of some boron compounds at 59.54 keV.

In this study, the albedo factors (number, energy, and dose) of some boron compounds were investigated at a scattering angle of 180°. Eight boron compounds were tested in the mean atomic number range of 4.571 ≤ Z‾ ≤ 19.

Mean atomic number analysis by the coherent to backscattering intensity ratios at 59.54 and 661.62 photon energies.

In this work, the qualitative analysis has been performed by using ratio of coherent to backscattering intensity ratios. The samples in the mean atomic number range 4.268≤Z‾≤5.

Dependence of albedo factors on mean atomic number for 662 keV gamma photons.

The albedo factors (number, energy and dose) of the samples with various mean atomic number have been investigated at a scattering angle of 180°. Fourteen different samples in the mean atomic number range 9.743 ≤ Z‾ ≤ 83.

Variation of scattering intensity ratios with mean atomic number using a dilution technique in EDXRF.

The variation of different intensity ratios with mean atomic number for qualitative analysis was investigated in EDXRF. Ten different samples with a mean atomic number between 4.268 and 5.

L-shell differential cross-section and alignment of uranium at 59.54-keV photon energy.

L X-ray differential cross-sections of uranium were calculated at several polar scattering angles (85°, 95°, 105°, 115°, 125°, and 135°) at 59.54-keV photon energy by using a Si(Li) detector. We observed that L and L X-rays were dependent on the polar scattering angle, whereas L and L X-rays were independent of the polar scattering angle.

Investigation of the effective atomic numbers of dosimetric materials for electrons, protons and alpha particles using a direct method in the energy region 10 keV-1 GeV: a comparative study.

A direct method has been used for the first time, to compute effective atomic numbers (Z eff) of water, air, human tissues, and some organic and inorganic compounds, for total electron proton and alpha particle interaction in the energy region 10 keV-1 GeV. The obtained values for Z eff were then compared to those obtained using an interpolation procedure. In general, good agreement has been observed for electrons, and the difference (%) in Z eff between the results of the direct and the interpolation method was found to be <10 % for all materials, in the energy range from 10 keV to 1 MeV.