Results 11 to 20 of about 4,533 (261)
The structure type ZrAl0.23Ge1.77
Фізика і хімія твердого тіла, 2023 The new ternary intermetallic compound ZrAl0.23Ge1.77 was observed after annealing at 600°C, and its crystal structure was determined by X-ray single-crystal diffraction.
D. Maryskevych +3 more
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Prism-array lenses for energy filtering in medical x-ray imaging [PDF]
SPIE Proceedings, 2007 Conventional energy filters for x-ray imaging are based on absorbing materials which attenuate low energy photons, sometimes combined with an absorption edge, thus also discriminating towards photons of higher energies. These filters are fairly inefficient, in particular for photons of higher energies, and other methods for achieving a narrower ...
Fredenberg, Erik +3 more
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X‐ray bi‐prism interferometry—A design study of proposed novel hardware [PDF]
Medical Physics, 2021 AbstractPurposeAdvances in X‐ray phase‐contrast imaging can obtain excellent soft‐tissue contrast of phase‐shift, attenuation, and small‐angle scatter. Here, we present fringe patterns for different design parameters of X‐ray bi‐prism interferometry imaging systems.
Gullberg, Grant T +4 more
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Burangaite, a new phosphate mineral from Rwanda [PDF]
Bulletin of the Geological Society of Finland, 1977 This paper describes a new phosphate, burangaite, from the Buranga pegmatite in Rwanda. Burangaite is monoclinic with the idealized formula (Na,Ca)2(Fe2+,Mg)2Al10(OH,O)12(PO4)8 ∙ 4H2O, Z = 2. The crystals exhibit narrow, bladed prisms, elongated parallel
O. von Knorring +2 more
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Medžiagotyra, 2015 Calcium titanate (CaTiO3) with prism-like-shaped and CaTi2O4(OH)2 nanosheet-like morphology were synthesized by a simple solvothermal route without any surfactants.
Weixia DONG +3 more
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New Quaternary Compounds R3Ni0.5SiS7 (R – Y, Sm, La) with the La3Mn0.5SiS7 Structure
Фізика і хімія твердого тіла, 2022 The new sulfides Y3Ni0.5SiS7, Sm3Ni0.5SiS7, and La3Ni0.5SiS7 exist in the quasi-ternary systems Y2S3 – NiS – SiS2, Sm2S3 – NiS – SiS2, and La2S3 – NiS – SiS2, respectively, for which the isothermal sections at 770 K were investigated.
Oleksandr Smitiukh, Oleg Marchuk
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W-Sn Mixed Oxides and ZnO to Detect NOx and Ozone in Atmosphere
Proceedings, 2018 Thick films of zinc oxide (ZnO) in form of nanospheres or hexagonal prisms and of tungsten-tin (W-Sn) mixed oxides at nominal Sn molar fraction (0.1, 0.3 and 0.5) were prepared.
Ambra Fioravanti +5 more
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Acta Crystallographica Section E, 2008 The title hafnium germanium telluride, HfGeTe4, has been synthesized by the use of a halide flux and structurally characterized by X-ray diffraction.
Hoseop Yun, Gyung-Joo Jang
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Main properties of silicides of the Mo - Si system [PDF]
E3S Web of Conferences, 2023 Using magnetron-ion sputtering, a layer of metallic molybdenum 1–2 μm thick was deposited on the surface of a silicon single crystal grown by the Czochralski method in an atmosphere of an inert argon gas at ambient temperature.
Utamuradova Sh. B. +5 more
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Zooming X-rays with a single rotation in X-ray prism zoom lenses (XPZL)
Optics Express, 2019 Prism arrays arranged to form a slightly open alligator mouth were found to focus incident X-rays, as with increasing distance from the object symmetry axis these rays hit an increasing number of refracting prism tips. Such an object is then formally a refractive lens. Due to the strong energy dependence of the refractive index of material for X-rays a
Jark, Werner +3 more
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