Detection limits of impurities in a light filler in an X-ray fluorescent arrangement with a secondary target

Mikhailov, I. F.; Baturin, A. A.; Mikhaǐlov, A. I.; Fomina, L. P.

doi:10.1134/s002044121203013x

Cited by 7 publications

(5 citation statements)

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“…Similar results can be obtained when monochromatization is carried out by a secondary target [2,3], which substantially increases the contrast of the fluorescence spectrum and allows systems with a light filling agent to ensure the detec tion limit of impurities up to the level С min = 0.5 ppm for chemical elements with Z ranging from 22 (Ti) up to 34 (Se) without concentrating the sample [4]. A fur ther increase in the analysis sensitivity requires addi tional sample preparations.…”

Section: Introductionsupporting

confidence: 66%

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Quantitative estimation of impurities in the nanosized mass range in the X-ray fluorescence arrangement with a secondary target

et al. 2013

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Results of X ray fluorescence studies of the detection limit for the substance mass and the sensi tivity of analysis for the arrangement with a secondary target are presented. Results for a number of known sample preparation methods are compared. The possibility of using high stability thin film standard samples of nanosized mass range for quantitative measurements of trace impurities is considered.

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Section: Introductionsupporting

confidence: 66%

“…The measurement arrangement was presented in [4]. The БС 22 X ray tube with a sil ver shooting anode irradiates a germanium secondary target.…”

Section: Materials and Procedures Of The Investigationmentioning

confidence: 99%

Quantitative estimation of impurities in the nanosized mass range in the X-ray fluorescence arrangement with a secondary target

et al. 2013

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“…The elemental composition was determined by Xray fluorescence analysis [29]. The resulting data in at.% are shown in Table 2.…”

Section: Resultsmentioning

confidence: 99%

INFLUENCE OF THE MAGNITUDE OF THE BIAS POTENTIAL AND THICKNESS OF THE LAYERS ON THE STRUCTURE, SUBSTRUCTURE, STRESS-DEFORMED STATE AND MECHANICAL CHARACTERISTICS OF VACUUM-ARC MULTI-LAYERED (TiMo)N/(TiSi)N COATINGS

Sоbоl¹,

Postelnyk²,

Meylekhov³

et al. 2020

Problems of Atomic Science and Technology

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Layers based on titanium nitride doped with molybdenum and silicon were used to create a multilayer composite. In this case, the mismatch between the lattice periods of (TiMo)N and (TiSi)N layers was about 1%. It was found that in the (TiMo)N/(TiSi)N multilayer composite, such a mismatch of the periods in the constituent layers does not change the single-phase state of the composite even at relatively large layer thicknesses (about 350 nm). The creation of a (TiMo)N/(TiSi)N composite with a nanometer layer thickness allows one to reduce the magnitude of macrostresses (a large value of which is characteristic of single-layer (TiMo)N coatings) and change the substructural characteristics in a wide range of values. It has been established that the use of multi-element (TiMo)N and (TiSi)N layers in a multilayer coating design allows one to achieve a high-hard state with high adhesive strength and good tribological characteristics. The highest properties (hardness – 34.8 GPa and adhesive strength - 166.09 N) were achieved in coatings obtained at Ub = -200 V and a layer thickness of 80 nm, which are characterized by compression macrostresses of 7.85 GPa and microstrains - 0.75%.

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“…The result was up to 30 % of the mass. The next step was to establish the elemental composition using X-ray fluorescence analysis, as one of the modern spectroscopic methods [17,18]. The result of X-ray fluorescence analysis is shown in figure 1.…”

Section: Methodsmentioning

confidence: 99%

To the question of using of low-grade phosphate rock from Synycheno-Yaremivske field of the Iziumskyi district

Vetsner

Kazakov

Doronina

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The article is devoted to the study of low-grade phosphorites of the Synycheno-Yaremivske deposit in the Iziumskyi district of the Kharkiv region. The possibility of enrichment of this ore by three methods is considered: mechanical, thermal and chemical, carried out in laboratory conditions. The qualitative and quantitative composition of phosphorite has been determined using X-ray fluorescence analysis and electron microscopy with an attachment for energy dispersive analysis. Both natural and enriched raw materials have been studied. Based on the data obtained, it is possible to concentrate this ore with a subsequent increase in the P2O5 content, despite the abnormally large amount of iron.

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Detection limits of impurities in a light filler in an X-ray fluorescent arrangement with a secondary target

Cited by 7 publications

References 1 publication

Quantitative estimation of impurities in the nanosized mass range in the X-ray fluorescence arrangement with a secondary target

Quantitative estimation of impurities in the nanosized mass range in the X-ray fluorescence arrangement with a secondary target

INFLUENCE OF THE MAGNITUDE OF THE BIAS POTENTIAL AND THICKNESS OF THE LAYERS ON THE STRUCTURE, SUBSTRUCTURE, STRESS-DEFORMED STATE AND MECHANICAL CHARACTERISTICS OF VACUUM-ARC MULTI-LAYERED (TiMo)N/(TiSi)N COATINGS

To the question of using of low-grade phosphate rock from Synycheno-Yaremivske field of the Iziumskyi district

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