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Lι, Lα, Lβ and Lγ X-ray fluorescence cross-sections of heavy elements for the exciting photons energy 38.18, 43.95, 50.21 and 59.5 keVBaştuǧ, ArifCross-sectionsL-shellX-ray fluorescenceErbium compoundsFluorescencePhotonsX ray analysisbismutherbiumgoldleadmercurytantalumthalliumtungstenarticlecalculationenergyphotonspectrumX ray fluorescenceExciting photons energyHeavy elementsLanthanum compoundsThe cross-sections for the production of Lι, Lα, Lβ and Lγ X-ray fluorescence (XRF) in Er, Ta, W, Au, Hg, Tl, Pb and Bi by photons with energies in the range 38-59.5 keV have been measured, using a standard doublereflection experimental set-up. Measurements have been performed using an annular 241 Am primary source and X-ray emitting secondary-exciter system. Experimental cross-sections have been compared with the theoretically calculated values of L X-ray cross-sections and fairly good agreement is observed between the experimental and theoretical values. © 2007 Elsevier Ltd. All rights reserved.PERGAMON-ELSEVIER SCIENCE LTD2008Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/16149https://doi.org/10.1016/j.radphyschem.2007.09.0090969-806XenRadiation Physics and Chemistryinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/16149