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The Spread Function of a Polycapillary Lens and a Confocal X-Ray Microscope in Retuning its Confocal Volume Full article

Journal Optoelectronics, Instrumentation and Data Processing
ISSN: 8756-6990 , E-ISSN: 1934-7944
Output data Year: 2015, Volume: 51, Number: 3, Pages: 293-301 Pages count : 9 DOI: 10.3103/s8756699015030127
Tags micro-XRF, X-ray optics, polycapillary lenses, confocal X-ray microscope, CXRF, spread function, inverse problem.
Authors Sorokoletov D.S. 1 , Rakshun Y.V. 1 , Dar’in F.A. 1
Affiliations
1 Budker’s Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 11, Novosibirsk, 630090 Russia

Abstract: A confocal experimental scheme with two polycapillary lenses is used to analyze the nearsurface layers of samples by X-ray fluorescent microanalysis with an accuracy of up to 10 µm. To increase the spatial resolution, it is required to account for the influence of the spread function of the confocal X-ray optical node. It is interesting to experiment with a tunable aperture of the confocal volume. In this case, the contribution of tuning inaccuracies in the spread function can increase. A method for describing the spread function of a confocal X-ray microscope that allows for its retuning and accounts for the effect of the angular tuning errors is proposed and experimentally proved. The method is based on the use of an approximating expression of the type of asymmetric approximation of the “Gaussian beam caustic”.
Cite: Sorokoletov D.S. , Rakshun Y.V. , Dar’in F.A.
The Spread Function of a Polycapillary Lens and a Confocal X-Ray Microscope in Retuning its Confocal Volume
Optoelectronics, Instrumentation and Data Processing. 2015. V.51. N3. P.293-301. DOI: 10.3103/s8756699015030127 WOS Scopus OpenAlex
Original: Сороколетов Д.С. , Ракшун Я.В. , Дарьин Ф.А.
Аппаратные функции поликапиллярной линзы и конфокального рентгеновского микроскопа при перестройке его конфокального объёма
Автометрия. 2015. Т.51. №3. С.94-103.
Dates:
Submitted: Jun 16, 2014
Identifiers:
Web of science: WOS:000420996200012
Scopus: 2-s2.0-84938583753
OpenAlex: W2114492029
Citing:
DB Citing
OpenAlex 12
Web of science 5
Scopus 9
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