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High-Resolution Analysis Using Bent Perfect Crystal in Powder Diffraction: Part I
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SYSNO ASEP 0534293 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-Resolution Analysis Using Bent Perfect Crystal in Powder Diffraction: Part I Author(s) Mikula, Pavol (UJF-V) RID, ORCID, SAI
Šaroun, Jan (UJF-V) RID, ORCID, SAI
Stammers, James H. (UJF-V)
Em, V. (RU)Number of authors 4 Source Title Journal of Surface Investigation-X-Ray Synchrotron and Neutron Techniques. - : Pleiades Publishing - ISSN 1027-4510
Roč. 14, SUPPL 1 (2020), s. 146-150Number of pages 5 s. Publication form Print - P Language eng - English Country US - United States Keywords powder diffraction ; focusing ; bent crystal analyzer Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LM2015048 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2010011 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LM2015056 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UJF-V - RVO:61389005 UT WOS 000578828100030 EID SCOPUS 85092422901 DOI 10.1134/S1027451020070320 Annotation Three-axis setup using a bent perfect crystal monochromator and analyzer was tested in the diffraction study of alpha-Fe(211) polycrystalline pins with diameters of 8 and 2 mm. After the optimal conditions were realized at a neutron wavelength of 0.162 nm, a high angular resolution was achieved up to FWHM (Delta d/d) = 4.7 x 10(-3)and 3.5 x 10(-3)for 8 and 2 mm pins, respectively, within the range of curvatures of the analyzer used. However, open beams were used, i.e., without Soller collimators. Such a diffraction setting can be used in powder diffraction studies, namely, in the analysis of small changes in the lattice parameters or small changes in the diffraction profile due to the application of an external load. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2021 Electronic address https://doi.org/10.1134/S1027451020070320
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