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For portable XRF spectrometers, copper target is usually bombared with high energy electrons, that are produced either by impact laser or by pyroelectric crystals. [ 4 ] [ 5 ] Alternatively, gamma ray sources, based on radioactive isotopes (such as 109 Cd, 57 Co, 55 Fe, 238 Pu and 241 Am) can be used without the need for an elaborate power ...
Print/export Download as PDF; Printable version; In other projects ... move to sidebar hide. XRF may refer to: X-ray fluorescence , analytical technique; X-ray ...
Micro x-ray fluorescence (μXRF) is an elemental analysis technique that relies on the same principles as x-ray fluorescence (XRF). Synchrotron X-rays may be used to provide elemental imaging with biological samples. [1] The spatial resolution diameter of micro x-ray fluorescence is many orders of magnitude smaller than that of conventional XRF.
Later NASA developments did lead to an X-ray spectrographic unit that did make the desired moon soil analysis. The Norelco efforts faded but the use of X-ray spectroscopy in units known as XRF instruments continued to grow. With a boost from NASA, units were finally reduced to handheld size and are seeing widespread use.
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 SEM. Procop, Mathias, Vasile-Dan Hodoroaba, and Vanessa Rackwitz.
Wavelength-dispersive X-ray spectroscopy (WDXS or WDS) is a non-destructive analysis technique used to obtain elemental information about a range of materials by measuring characteristic x-rays within a small wavelength range.
Silicon drift detectors (SDDs) are X-ray radiation detectors used in x-ray spectrometry (XRF and EDS) and electron microscopy. Their chief characteristics compared with other X-ray detectors are: high count rates; comparatively high energy resolution (e.g. 125 eV for Mn Kα wavelength) Peltier cooling
The Fido explosives detector has been recognized by multiple awards since its inception in the early 2000s. The handheld version of the system was named one of the top ten greatest inventions by the U.S. Army in 2005, and the Packbot robotic platform with the integrated Fido explosives detector received the same award in 2006.
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