Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Svetlana V. Nikitina"'
Publikováno v:
European Proceedings of Social and Behavioural Sciences.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65b31990503e165285a5cb3e4f8c1028
https://doi.org/10.15405/epsbs.2022.02.19
https://doi.org/10.15405/epsbs.2022.02.19
Publikováno v:
SPIE Proceedings.
The possibilities of increasing the sensitivity of energy dispersive X-ray fluorescence analysis (EDXRF) of solutions with the use of special preconcentrating sensors are described in the article. The sensors are made from polycapillary tubes or plat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2159b6ef666d56c2568633052bb5f1e3
https://doi.org/10.1117/12.637999
https://doi.org/10.1117/12.637999
Autor:
Nariman S. Ibraimov, Ekaterina V. Likhushina, Alexander V. Kotelkin, Alexander D. Zvonkov, Dmitriy B. Matveev, Svetlana V. Nikitina, Alexander V. Liutsau
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
One of the most important features of the developed portable diffractometer making use of Kumakhov's half-lens is that allows stress strain analysis in different sections of the investigated object. Here the investigation results are presented showin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e3c2885eb5f7ff890105bc62d81c496
https://doi.org/10.1117/12.489750
https://doi.org/10.1117/12.489750
Autor:
Dmitrii I. Gruev, Sergey S. Gorbunov, Svetlana V. Nikitina, Ekaterina V. Likhushina, Nariman S. Ibraimov
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
Different radial capillary layers give different contributions in x-ray radiation field at Kumakhov lens of halflens exit. In case of halflenses transforming divergent beams into quasiparallel ones it can essentially influence an exit quasiparallel b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82d9fa67d48f8fec723a72b1cd75948e
https://doi.org/10.1117/12.489755
https://doi.org/10.1117/12.489755
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
This paper suggests the scheme of a diffractometer for phase and crystal structure analysis of inorganic matter, where the Kumakhov's capillary half-lens is used as the collimation system. Goniometer-free design of the diffractometer enables applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6700c5ec92488bd33b3a26e5a7b5b2ce
https://doi.org/10.1117/12.489744
https://doi.org/10.1117/12.489744
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
The results of measurements of x-ray polycapillary transmission coefficient for 1.5 keV photons are given. As a source of quasi-monochromatic x-ray, a transmission-type aluminum anode x-ray tube was used for investigation of capillaries' optic featur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::093cccb4cfdb98429eb149915998f6d6
https://doi.org/10.1117/12.489758
https://doi.org/10.1117/12.489758
Autor:
Sergey N. Polyakov, V. P. Petukhov, Svetlana V. Nikitina, Yury V. Ozerov, Aleksei A. Priladyshev
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
Intensity distribution of Mo L x-rays at the half-lens exit was measured, as well as the parameters of the electron induced X-rays source were studied. The measurements have shown that efficiency of production of X-rays with 1.5-2 keV depends on elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abc80e62d9ea2084bf41692f2c3f3f06
https://doi.org/10.1117/12.489742
https://doi.org/10.1117/12.489742
Autor:
Svetlana V. Nikitina, Oleg V. Mikhin, Aleksei A. Priladyshev, Nariman S. Ibraimov, V. P. Petukhov
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
For the first time the technology of a small-size polycapillary lenses manufacturing was proposed. Technique of micro lens certification is considered. Efficiency of simultaneous using of such lenses and micro focus x-ray sources is shown.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98fa7f8ae964a32b149df61926be34d2
https://doi.org/10.1117/12.489756
https://doi.org/10.1117/12.489756
Autor:
Nariman S. Ibraimov, Ekaterina V. Likhushina, V. P. Petukhov, Oleg V. Michin, Svetlana V. Nikitina
Publikováno v:
International Conference on X-ray and Neutron Capillary Optics.
It is known that polycapillary half-lenses and lenses limit x-ray energy both in low and high eneryg area, i.e. they create an energy transmission range from 2 to 20 keV. This enables use of the lenses as filters wihtin a wide energy range. The effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4a5f02de92c9456c71a2bf4b9023ddc
https://doi.org/10.1117/12.489747
https://doi.org/10.1117/12.489747
Publikováno v:
SPIE Proceedings.
X-ray integral intensity and fluence density of a quasiparallel x-ray beam obtained by use of microfocus tube in combination with a new type of capillary halflens with record focal distance approximately 4 mm have been investigated. Maximal incoming
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4334a958e2752c47389a82978739f06a
https://doi.org/10.1117/12.387861
https://doi.org/10.1117/12.387861