X-ray Optical Systems Incorporated

Ning Gao

Brian Rodrick York

Zewu Chen

Walter M Gibson

Oi-fan Xiao

An x-ray system or method for exciting a sample under x-ray analysis, using a curved monochromating optic for directing a monochromatic x-ray beam from an x-ray source towards a first focal area. A second optic is positioned within, and receives, the monochromatic x-ray beam, and directs a focused x-ray beam towards a second focal area on the sample. A detector is positioned near the sample to collect radiation from the sample as a result of the focused x-ray beam. The curved monochromating optic produces a beam spot size at the first focal area larger than a beam spot size produced by the second optic at the second focal area, therefore, a beam spot size on the sample is thereby reduced using the second optic. Doubly-curved monochromating optics, and polycapillary optics, are disclosed as possible implementations of the optics.

Monochromatic x-ray micro beam for trace element mapping

A monocapillary has a first region of constant inner dimension where the angle of reflection remains essentially constant as radiation is guided therethrough. The monocapillary also has a second region of decreasing inner dimension in a direction toward the outlet where the radiation is guided therethrough. In another embodiment, the monocapillary also has a third region at the inlet of increasing inner dimension toward the outlet direction where the radiation is guided therethrough.

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Niskayuna, NY, United States of America

Ning Gao