Conical collimator for X-ray measurements
AssigneeMalvern Panalytical Limited
InventorsPetronella Emerentiana Hegeman, Gustaaf Christian Brons
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Abstract
X ray apparatus includes a sample stage (4) for supporting a sample (6), an X-ray source (2) and an energy dispersive X-ray detector (8). A conical X-ray collimator (10) is provided either between the sample and the X-ray source or between the sample and the energy-dispersive X-ray detector, the conical X-ray collimator including a plurality of truncated cones arranged concentrically around a central axis, the truncated cones having a common apex defining a central measurement spot on the sample.
Claims4
A method of manufacture of a conical collimator for an X-ray fluorescence apparatus, the method comprising:
- using a direct metal laser sintering process to form a conical collimator of refractive metal, the conical collimator including a plurality of truncated cones arranged concentrically around a central axis, the truncated cones having a common apex defining a central measurement spot on the sample, for collimating X-rays;
- and
- carrying out a further etch process to etch the refractive metal and etch away small particles of the refractive metal.
Dependencies are inferred from the claim text.