Experimental and theoretical approaches for determining the K-shell fluorescence yield of carbon

Experimental determination of tantalum L-shell fluorescence yields and Coster-Kronig transition probabilities

“…Considering both the determined fluorescence yields and the Coster Kronig factors, we can conclude that the X-raylib table gives a relatively good collection of the relevant Ta-FPs. This is also in line with observations from earlier FP determinations from our group [21,25,31]. Thus, the X-raylib tables are a very good starting point if a consistent database is needed.…”

“…To determine the FPCS (fluorescence production cross section) from the experimental data, a quantitative combined modeling of the GIXRF-XRR data was performed as shown in ref. [21]. For this purpose, a model based on a thin carbonaceous contamination layer on tantalum oxide on tantalum on native oxide covered silicon was used.…”

Experimental determination of tantalum L-shell fluorescence yields and Coster–Kronig transition probabilities

“…This is also in line with observations from earlier FP determinations from our group. 21,25,35 Thus, the X-raylib tables are a very good starting point if a consistent database is needed.…”

“…To determine the fluorescence production cross section (FPCS) from the experimental data, a quantitative combined modeling of the GIXRF-XRR data was performed as shown in ref. 21. For this purpose, the sample was modeled by the following layer stack: A thin carbonaceous contamination covering tantalum oxide which is on tantalum on native oxide which covers the silicon wafer.…”

Experimental determination of ruthenium L-shell fluorescence yields and Coster–Kronig transition probabilities

“…Based on transmission and uorescence experiments on thin lm samples, such FP data can be derived as already demonstrated for a wide range of chemical elements. [11][12][13][14][15] 2 Experimental procedure For an experimental determination of L-shell uorescence yields and Coster-Kronig transition probabilities, both uorescence-and transmission experiments with a selective excitation of the three L-subshells on either a free standing thin foil or a thin coating on a carrier foil are required .11-13,15 In the present work, these experiments were conducted on the fourcrystal monochromator (FCM) beamline 16 of BESSY II using a vacuum chamber that is in-house developed. 17 This chamber was endowed with a silicon dri detector (SDD) of which the detection efficiency is radiometrically calibrated and the response functions are determined experimentally.…”