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A portable XRF analyzer using a silicon drift detector. In energy-dispersive analysis, dispersion and detection are a single operation, as already mentioned above. Proportional counters or various types of solid-state detectors (PIN diode, Si(Li), Ge(Li), silicon drift detector SDD) are used.
Please add information about portable, miniature, and hand-held XRF equipment. Field testing in geology, lead paint, toy testing, etc. This is not just a big laboratory instrument! Please make the article more understandable, relevant, and current.-69.87.204.246 23:37, 8 September 2007 (UTC)
XRF offers many advantages. It’s fast and non-destructive, meaning samples remain intact after analysis. It works well for solid materials with minimal preparation, saving time and reducing costs. Handheld XRF devices allow on-site testing, making them useful in industrial and environmental settings.
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.
SEM/EDS spectra is compared to SEM-XRF spectra for a NIST 610 standard. SEM-XRF is an established technical term for adding a (typically micro-focus) X-ray generator (X-ray source) to a Scanning Electron Microscope (SEM).
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
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