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X-ray fluorescence (XRF) is the emission of characteristic "secondary" (or fluorescent) ... X-ray generators in the range 20–60 kV are used, which allow excitation ...
V.‐D. Hodoroaba & M. Procop. X-Ray Spectrometry, Vol 38, No 3, p 216-221, (2009). Improvements of the low-energy performance of a micro-focus x-ray source for XRF analysis with the SEM Procop, Mathias; et al. X‐Ray Spectrometry: An International Journal 38.4 (2009): 308-311. A microfocus X-ray source for improved EDS and XRF analysis in the ...
An X-ray generator generally contains an X-ray tube to produce the X-rays. Possibly, radioisotopes can also be used to generate X-rays. [1]An X-ray tube is a simple vacuum tube that contains a cathode, which directs a stream of electrons into a vacuum, and an anode, which collects the electrons and is made of tungsten to evacuate the heat generated by the collision.
X-ray optics is the branch of optics dealing with X-rays, rather than visible light.It deals with focusing and other ways of manipulating the X-ray beams for research techniques such as X-ray diffraction, X-ray crystallography, X-ray fluorescence, small-angle X-ray scattering, X-ray microscopy, X-ray phase-contrast imaging, and X-ray astronomy.
X-ray generators produce X-rays by applying a high voltage between the cathode and the anode of an X-ray tube and in heating the tube filament to start the electron emission. The electrons are then accelerated in the resulting electric potential and collide with the anode, which is usually made of Tungsten .
Nion went on to supply the scientific community with correctors for 100 and 300 kV dedicated STEMs made by Vacuum Generators. Nion's 2004 Science article [ 3 ] demonstrated 0.78 Å resolution and led to wide acceptance of aberration correction as the best way to achieve high spatial resolution in electron microscopy.
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