Yazar "Allm B." seçeneğine göre listele

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    Buildup factors and kerma for Al2O3 and SiO2 in the energy range 0.015-15MeV
    (American Institute of Physics Inc., 2017) Yllmaz D.; Allm B.; Akkuş T.; Güzeldir B.
    The energy absorption buildup factors (EABF) have been calculated for some thermoluminescent dosimetric materials (Al2O3 and SiO2) in the energy region 0.015-15MeV up to the penetration depth of 40 mean free paths (mfp). Also, kerma relative to air has been determined for these materials. It is observed that the energy absorption buildup factors and kerma relative to air depend on the photon energy and chemical content. Also, the energy absorption build up factors are found the highest in intermediate energy whereas the lowest in low- as well as high energies. © 2017 Author(s).
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    Determination of K shell XRF parameters and K to L shell vacancy transfer probabilities of ferromagnetic 3d transition metals
    (American Institute of Physics Inc., 2017) Allm B.; U?urlu M.; Han I.; Demir L.
    In this study, K shell X-ray fluorescence cross-sections (?K?, ?K? and ?K), K shell fluorescence yields (?K) and K to L shell vacancy transfer probabilities (?KL) of ferromagnetic 3d transition metals (Fe, Co, Ni) were investigated to understand how the relationship between ferromagnetism and these values changes with atomic number by using energy dispersive X-ray fluorescence (EDXRF) technique. The all obtained experimental and theoretical results were comparatively given as a function of the atomic number. It was clearly observed that all of the investigated parameters depend on the atomic number and the ferromagnetism state of the atom. © 2017 Author(s).
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    Examination of absorption effects at the Compton to coherent scattering intensities X-rays using Fe-Ca and Fe-Ti binary compounds with WDXRF
    (American Institute of Physics Inc., 2017) Boydaş E.; Boydaş M.G.; Allm B.
    Matrix absorption effects have been examined with scattered X-rays by using WDXRF system for Fe-Ca and Fe-Ti binary compounds. Fe as analyte and elements which some of them the K absorption edge just below the characteristic K X-ray energies of the analyte (Fe) as matrix have been chosen. Pure and binary with Fe ratio ranging from 10% to 90% samples were prepared with these elements. These samples have been analyzed in WDXRF system. At the end of measurement, the coherent and Compton scattering X-rays data of Rh K? X-rays from these samples have been obtained. Matrix absorption effects have been examined by calculating coherent / Compton scattered X-rays intensity ratio. © 2017 Author(s).