- Bitlis Eren University Journal of Science and Technology
- Vol: 6 Issue: 1
- Effective atomic numbers and electron densities for some lanthanide oxide compounds using direct met...
Effective atomic numbers and electron densities for some lanthanide oxide compounds using direct method in the energy region of 1 keV - 20 MeV
Authors : Mehmet Büyükyıldız
Pages : 7-12
Doi:10.17678/beujst.07046
View : 12 | Download : 8
Publication Date : 2016-06-30
Article Type : Other
Abstract :In this paper, the effective atomic numbers and electron densities representing interaction of gamma rays with oxides of lanthanides have been studied. The effective atomic numbers for photon energy-absorption ( Z PEAeff ) and photon interaction ( Z PIeff ), and relative to air Z Reff , the effective electron densities for photon energy-absorption ( N PEAeff ) and photon interaction ( N PIeff ) were calculated using the values of the mass attenuation and energy absorption coefficients. The variation of Z PEAeff , Z PIeff , Z Reff , N PEAeff and N PIeff with energy were shown graphically. In the continuous energy region, it was observed that there are agreements and disagreements between photon interaction and photon energy-absorption for effective atomic numbers and electron densities of compounds in different energy regions. In addition, absorption edge effects on effective atomic numbers leading more than a single value of effective atomic number at a specific energy have been discussed for the given compounds. Comparisons with experiments wherever possible have been carried out for calculated values of Z eff and N eff .Keywords : Lanthanides, Effective atomic number, Effective electron density, Radiation interaction