X-555 XRF Analyzer by SciAps Inc.
The X-ray energy needed to effectively excite emissions from the light REEs resides in the 40-48 keV range. Typical X-ray tubes in handheld units only operate up to 50 kV, and therefore only a tiny fraction of the X-ray energy is useful for excitation of the REEs.
By operating the X-ray tube up to 55 kV, about 10x more X-ray energy is available to produce emissions from the light REEs and the first two heavy REEs, gadolinium and europium. While it’s not possible to operate a handheld XRF at high enough voltages to usefully measure all heavy REEs, the X-555 provides highly sensitive yttrium analysis, which is a common pathfinder for the heavy REEs.
The X-555, with its exceptional shielding and 4 mm diameter beam collimation, may be used directly on rock surfaces and cores. It can also be equipped with an interlocked test stand for safe analysis of cupped or bagged samples.
Values for interference-free (SiO2) and highly challenging OREAS REE ores containing multiple interfering elements. LODs are for 3-sigma detection above background, 120-second test times.







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