Patent ID: 9449780
Filing Date: 2016-09-20
CPC Classification: G01N,G21K,H01J

Claim Text:
1. An x-ray analysis apparatus for analyzing a sample spot, comprising: an x-ray tube comprising a target on which electrons impinge to form a diverging x-ray beam, the target having a surface formed from first and second target materials, each target material tailored to emit a respective energy profile upon impingement by the electrons; a first x-ray optic for receiving the diverging x-ray beam and directing the beam toward the sample spot, the first x-ray optic monochromating the beam to a first energy from the energy profile emitted by the first target material; a second x-ray optic for receiving the diverging x-ray beam and directing the beam toward the sample spot, the second x-ray optic monochromating the beam to a second energy from the energy profile emitted by the second target material; and a detector to receive fluorescence from the sample spot induced by the first and second monochromated energies and indicative of a concentration of at least one element in the sample.