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Search for and Analysis of Composition and Structure of Submicron-Size Particles in Geological and Environmental Samples Научная публикация

Конференция International Conference "Synchrotron and Free electron laser Radiation: generation and application"
13-17 июл. 2020 , Novosibirsk
Журнал AIP Conference Proceedings
ISSN: 0094-243X , E-ISSN: 1551-7616
Вых. Данные Год: 2020, Том: 2299, Номер: 1, Номер статьи : 070001, Страниц : 4 DOI: 10.1063/5.0030411
Авторы Darin Fedor 1 , Kriventsov Vladimir 2 , Sorokoletov Dmitry 1 , Rakshun Iakov 1 , Darin Andrey 3
Организации
1 Budker Institute of Nuclear Physics SB RAS, 11 Acad. Lavrentieva Pr., 630090, Novosibirsk, Russia
2 Boreskov Institute of Catalysis SB RAS, 5 Acad. Lavrentiev Ave., 630090, Novosibirsk, Russia
3 Sobolev Institute of Geology and Mineralogy SB RAS, 3 Ac. Koptyuga Ave., 630090, Novosibirsk, Russia

Информация о финансировании (3)

1 Российский фонд фундаментальных исследований 19-05-50046 (АААА-А20-120011790071-5)
2 Российский фонд фундаментальных исследований 18-03-01251
3 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)

Реферат: A technique combining SR XRF, XRF mapping, μ-XRF, and μ-XAFS for search for microparticles in different matrices and determination of particle size, as well as analysis of their composition and structure, has been developed at Budker Institute of Nuclear Physics. The technique is based on comprehensive examination of sample with gradually increasing the spatial resolution and constricting the study area for locating the desired microparticle. The beam size for preliminary studies ranges from 1 mm to 100 um in height and 10 mm in width. The next stage is examination using X-ray optics (polycapillary lenses) with single-lens and confocal schemes. The apparatus function of each lens is measured, which enables controlled variation of the focal spot size from 10 um to 70 um. This multifacet technique was tested on search for and study of micro-inclusions of light platinum group metals (Ru and Pd) in Bushveld (South Africa) Intrusive Complex samples. An area with high concentration of Pd has been found. The particle sizes (~ 50 um) have been identified. A localized particle was studied using the μ-XAFS method. The forms of Pd state in the particle have been established; their structural parameters (interatomic distances and coordination numbers) have been determined. © 2020 American Institute of Physics Inc. All rights reserved.
Библиографическая ссылка: Darin F. , Kriventsov V. , Sorokoletov D. , Rakshun I. , Darin A.
Search for and Analysis of Composition and Structure of Submicron-Size Particles in Geological and Environmental Samples
AIP Conference Proceedings. 2020. V.2299. N1. 070001 :1-4. DOI: 10.1063/5.0030411 Scopus РИНЦ CAPlus OpenAlex
Файлы: Полный текст от издателя
Даты:
Опубликована в печати: 17 нояб. 2020 г.
Опубликована online: 17 нояб. 2020 г.
Идентификаторы БД:
Scopus: 2-s2.0-85096488913
РИНЦ: 45134779
Chemical Abstracts: 2021:1075005
OpenAlex: W3103482831
Цитирование в БД:
БД Цитирований
Scopus 1
РИНЦ 1
OpenAlex 2
Альметрики: