Yilmaz, RafetArici, KaniOz, ElifTan, Mustafa2025-05-102025-05-1020110368-204810.1016/j.elspec.2010.12.0242-s2.0-79952007899https://doi.org/10.1016/j.elspec.2010.12.024https://hdl.handle.net/20.500.14720/11724Orhan, Elif/0000-0002-3949-6141Coster-Kronig processes are non-radiative transitions in which an inner-shell vacancy is transferred from one subshell of an atom to another. In this work, X-ray fluorescence cross-sections (sigma(Li), i = alpha, beta, & gamma, ) of the Tm element were measured at excitation energies of each L-i (i = 1, 2 and 3) subshells. Experimental measurements have been performed using an (24) Am annular source and a Si(Li) dedector. Absolute values of L X-ray cross-sections were calculated with incorporation of the enhancement due to the Coster-Kronig effect for Tm. The measured enhancement factors are smaller than the theoretically calculated values. (C) 2011 Elsevier B.V. All rights reserved.eninfo:eu-repo/semantics/closedAccessX-Ray Fluorescence (Xre)Irradiative TransitionsCoster-Kronig YieldsEnhancement FactorsArticle1841-2Q3Q314WOS:000289015400001