Patent classifications
G01N23/085
X-ray analyzer
An X-ray analyzer includes an X-ray source, a straight tube type multi-capillary, a flat plate spectroscopic crystal, a parallel/point focus type multi-capillary X-ray lens, and a Fresnel zone plate. A qualitative analysis is performed over an area on the sample, the flat plate spectroscopic crystal and the Fresnel zone plate are removed from the X-ray optical path, and X-rays are collected by the multi-capillary lens and the sample is irradiated. When analyzing the chemical morphology of an element, the multi-capillary lens retracts from the optical path, the source rotates, and the flat plate spectroscopic crystal and the Fresnel zone plate are inserted on the optical path. A narrow sample area is irradiated by the Fresnel zone plate with X-rays having energy extracted from the flat plate spectroscopic crystal. This makes it possible to carry out accurate qualitative analysis on the sample and perform detailed analysis of more minute parts.
SYSTEM AND METHOD FOR X-RAY ABSORPTION SPECTROSCOPY USING A CRYSTAL ANALYZER AND A PLURALITY OF DETECTOR ELEMENTS
A fluorescence mode x-ray absorption spectroscopy apparatus includes an electron bombardment source of x-rays, a crystal analyzer, the source and the crystal analyzer defining a Rowland circle having a Rowland circle radius (R), a detector, and at least one stage configured to position a sample at a focal point of the Rowland circle with the detector facing the sample.
SYSTEM AND METHOD FOR X-RAY ABSORPTION SPECTROSCOPY USING A CRYSTAL ANALYZER AND A PLURALITY OF DETECTOR ELEMENTS
A fluorescence mode x-ray absorption spectroscopy apparatus includes an electron bombardment source of x-rays, a crystal analyzer, the source and the crystal analyzer defining a Rowland circle having a Rowland circle radius (R), a detector, and at least one stage configured to position a sample at a focal point of the Rowland circle with the detector facing the sample.
Method for estimating abrasion resistance and fracture resistance
Provided is a method for estimating abrasion resistance and fracture resistance by highly accurately analyzing aggregation (dispersion) of sulfur-based materials in polymer composite materials. The present invention relates to a method for estimating abrasion resistance and fracture resistance, the method including: irradiating a polymer composite material containing at least one sulfur-based material selected from the group consisting of sulfur and sulfur compounds with high intensity X-rays; measuring X-ray absorption of a measurement region of the polymer composite material while varying the energy of the X-rays; calculating areas of spots having a high sulfur concentration equal to or greater than a predetermined level in a two-dimensional mapping image of sulfur concentration of the measurement region; and estimating abrasion resistance and fracture resistance based on the areas.
Method for estimating abrasion resistance and fracture resistance
Provided is a method for estimating abrasion resistance and fracture resistance by highly accurately analyzing aggregation (dispersion) of sulfur-based materials in polymer composite materials. The present invention relates to a method for estimating abrasion resistance and fracture resistance, the method including: irradiating a polymer composite material containing at least one sulfur-based material selected from the group consisting of sulfur and sulfur compounds with high intensity X-rays; measuring X-ray absorption of a measurement region of the polymer composite material while varying the energy of the X-rays; calculating areas of spots having a high sulfur concentration equal to or greater than a predetermined level in a two-dimensional mapping image of sulfur concentration of the measurement region; and estimating abrasion resistance and fracture resistance based on the areas.
Cell for X-ray analysis and X-ray analysis apparatus
Provided are a cell for X-ray analysis and an X-ray analysis apparatus that enable simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a material (sample) in the same field of view on the sample (same position on the sample). The cell for X-ray analysis of the present invention enables simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a sample in the same field of view on the sample and includes a furnace including a space where the sample is held and a focused heater heating the sample, a first window provided to the furnace and through which X-rays directed at the sample is incident, a second window provided to the furnace and from which X-rays emerging from the sample exit, a third window provided to the furnace, and a holder that positions the sample in the space. The cell for X-ray analysis makes it possible to simultaneously measure X-ray diffraction of the sample at outside of the second window and X-ray absorption fine structure of the sample through the third window.
Cell for X-ray analysis and X-ray analysis apparatus
Provided are a cell for X-ray analysis and an X-ray analysis apparatus that enable simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a material (sample) in the same field of view on the sample (same position on the sample). The cell for X-ray analysis of the present invention enables simultaneous X-ray diffraction and X-ray absorption fine structure measurements of a sample in the same field of view on the sample and includes a furnace including a space where the sample is held and a focused heater heating the sample, a first window provided to the furnace and through which X-rays directed at the sample is incident, a second window provided to the furnace and from which X-rays emerging from the sample exit, a third window provided to the furnace, and a holder that positions the sample in the space. The cell for X-ray analysis makes it possible to simultaneously measure X-ray diffraction of the sample at outside of the second window and X-ray absorption fine structure of the sample through the third window.
3-dimensional x-ray imager
The invention utilizes one exposure without moving parts to provide multiple x-ray views of an object. It relies on a 3D detector, which can be a stack of film plates, and a specified focusing x-ray optic. The x-ray optic, discussed below, allows collection of x-rays from a localized volume, just like an ordinary optical lens, and the stacked film plate, or other 3D detector design, allows collection of the multiple focal plane information from one line of sight.
3-dimensional x-ray imager
The invention utilizes one exposure without moving parts to provide multiple x-ray views of an object. It relies on a 3D detector, which can be a stack of film plates, and a specified focusing x-ray optic. The x-ray optic, discussed below, allows collection of x-rays from a localized volume, just like an ordinary optical lens, and the stacked film plate, or other 3D detector design, allows collection of the multiple focal plane information from one line of sight.
Global analysis peak fitting for chemical spectroscopy data
The present invention relates to methods for analyzing a chemical sample. For instance, the methods herein allow for global analysis of spectroscopy data in order to extract useful chemical properties from complicated multidimensional data. Such analysis can optionally employ data compression to further expedite computer-implemented computation. In particular, the methods herein provide global analysis of data matrices explained by both linear and non-linear terms.