نتایج جستجو برای: x ray microscope

تعداد نتایج: 702880  

2014
M. MALEKSHAHI BYRANVAND A. NEMATI KHARAT

A low temperature, simple, surfactant-free and one pot solution chemistry route was employed to synthesize diverse Zinc sulfide (ZnS) nanostructured assemblies at 70 °C by varying the solvent (water or ethylene glycol, or their mixture in the ratio of 1:1). In 1:1 water-EG solvent ratio, ZnS nanoflowers morphology was obtained. Morphology, structure, and composition of the obtained products wer...

Journal: :The Review of scientific instruments 2012
D J Vine G J Williams J N Clark C T Putkunz M A Pfeifer D Legnini C Roehrig E Wrobel E Huwald G van Riessen B Abbey T Beetz J Irwin M Feser B Hornberger I McNulty K A Nugent A G Peele

A dedicated in-vacuum coherent x-ray diffraction microscope was installed at the 2-ID-B beamline of the Advanced Photon Source for use with 0.7-2.9 keV x-rays. The instrument can accommodate three common implementations of diffractive imaging; plane wave illumination; defocused-probe (Fresnel diffractive imaging) and scanning (ptychography) using either a pinhole, focused or defocused probe. Th...

Journal: :journal of nanostructures 2015
a. rahdar m. aliahmad y. azizi

in the current paper,nanostructured nickel oxide (nio) were synthesized by co-precipitation method using nickel(ii) chloride hexahydrate (nicl2.6h2o) and sodium hydroxide (naoh) as starting material. structural, optical and magnetic properties of nanostructures were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), atomic force microscope (afm), uv–vis absorption; fo...

Ghobeiti-Hasab, Mehdi, Heidary Moghadam, Ali, Khalasi-Dezfuli, Mahdi,

In this research, Gas tungsten arc welding (GTAW) on Hastelloy B-2 Superalloy was used to investigate the effect of current type on microstructure and mechanical properties of welded zone. The welding process was performed using two direct and pulsed current and with Hastelloy X filler metal. Optical Microscope (OM) and Scanning Electron Microscope (SEM) were used to investigate the microstruct...

2005
Valeriy V. Yashchuk Steve C. Irick Eric M. Gullikson Malcolm R. Howells Alastair A. MacDowell Wayne R. McKinney Farhad Salmassi Tony Warwick

The consistency of different instruments and methods for measuring two-dimensional (2D) power spectral density (PSD) distributions are investigated. The instruments are an interferometric microscope, an atomic force microscope (AFM) and the X-ray Reflectivity and Scattering experimental facility, all available at Lawrence Berkeley National Laboratory. The measurements were performed with a gold...

Journal: :Acta Crystallographica Section A Foundations of Crystallography 1987

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