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X-ray fluorescence
Videos
X-ray fluorescence is the emission of characteristic "secondary" X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays. When a material is illuminated w
A X-ray fluorescence spectrometer with automated sample feed in a cement plant quality control laboratory
A X-ray fluorescence spectrometer with automated sample feed in a cement plant quality control laboratory
Figure 2: Typical wavelength dispersive XRF spectrum
Figure 2: Typical wavelength dispersive XRF spectrum
A portable XRF analyzer using a silicon drift detector
A portable XRF analyzer using a silicon drift detector
Figure 4: Schematic arrangement of EDX spectrometer
Figure 4: Schematic arrangement of EDX spectrometer
Gamma ray
Videos
A gamma ray, also known as gamma radiation, is a penetrating form of electromagnetic radiation arising from high-energy interactions like the radioactive decay of atomic nuclei or astronomical events
X-ray fluorescence
…the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays. When a material is illuminated with high-energy X-rays, its atoms can become excited and emit their own unique, characteristic X-rays—a process similar…
A hypernova. Artist's illustration showing the life of a massive star as nuclear fusion converts lighter elements into heavier ones. When fusion no lo
A hypernova. Artist's illustration showing the life of a massive star as nuclear fusion converts lighter elements into heavier ones. When fusion no longer generates enough pressure to counteract gravity, the star rapidly collapses to form a black hole. Theoretically, energy may be released during the collapse along the axis of rotation to form a long duration gamma-ray burst.
The Moon as seen by the Compton Gamma Ray Observatory, in gamma rays of greater than 20 MeV. These are produced by cosmic ray bombardment of its surfa
The Moon as seen by the Compton Gamma Ray Observatory, in gamma rays of greater than 20 MeV. These are produced by cosmic ray bombardment of its surface. The Sun, which has no similar surface of high atomic number to act as target for cosmic rays, cannot usually be seen at all at these energies, which are too high to emerge from primary nuclear reactions, such as solar nuclear fusion (though occasionally the Sun produces gamma rays by cyclotron-type mechanisms, during