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Properties of focusing polycapillary utilized in .sup.57./sup.Fe Mössbauer spectroscopy
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SYSNO ASEP 0561959 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Properties of focusing polycapillary utilized in 57Fe Mössbauer spectroscopy Author(s) Kočiščák, J. (CZ)
Novák, P. (CZ)
Chmelíčková, Hana (FZU-D) RID
Procházka, V. (CZ)Number of authors 4 Article number 110842 Source Title Measurement. - : Elsevier - ISSN 0263-2241
Roč. 192, Mar (2022)Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords Mössbauer spectrometer ; MCX ; polycapillary optics Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders OECD category Nuclear physics Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000781371600005 EID SCOPUS 85125438540 DOI 10.1016/j.measurement.2022.110842 Annotation A focusing polycapillary was incorporated in the Mossbauer spectrometer to achieve Mossbauer spectrum from the point with the diameter of 150 mu m. Since such an apparatus is rather unique and so far it has not been described, a detailed views into the problematics of using the focusing polycapillary with Co-57 source, and into the problematics of the scanning transmission Mossbauer microscope alignment procedure are presented. This article presents the properties of the focusing polycapillary and its performance for Fe-57 14.4 keV Mossbauer radiation using Co-57 radioactive source. The performance of the polycapillary is demonstrated with the measurement of the stainless steel. The obtained spectrum exhibited a similar signal to noise ratio as the Mossbauer spectrum acquired by using a pinhole with the diameter of 200 mu m. The usage of the polycapillary optics could be a promising way in Mossbauer spectroscopy, e.g. for measurements of tiny samples in an anvil cell.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.measurement.2022.110842
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