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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 ...
NTi Audio AG is a manufacturer of test and measurement instruments for acoustics, audio and vibration applications. With headquarters in Schaan, Liechtenstein, the company specializes in end-of-line audio testing for manufacturing quality control purposes, [1] provides instruments for testing public address systems in safety-critical environments [2] and also produces handheld Audio Analyzers ...
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.
Schematic of MWD XRF. Monochromatic wavelength dispersive x-ray fluorescence (MWD XRF) is an enhanced version of conventional wavelength-dispersive X-ray spectroscopy (WDXRF) elemental analysis. The key difference is that MWD XRF uses a doubly curved crystal X-ray optic between the X-ray source and the sample resulting in monochromatic excitation.
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.
A spectrum analyzer is also used to determine, by direct observation, the bandwidth of a digital or analog signal. A spectrum analyzer interface is a device that connects to a wireless receiver or a personal computer to allow visual detection and analysis of electromagnetic signals over a defined band of frequencies.
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