G01N2223/079

Method for determining a material composition
11579100 · 2023-02-14 · ·

A method comprises the steps of: (a) Obtaining a measured X-ray spectrum for the coated sample, for determining characteristics for the sample and for a coating material; (b) Determining a simulated X-ray spectrum for the sample based on an initial sample composition; (c) Determining an adapted sample composition that improves a match between the characteristics of the sample and an adapted simulated X ray spectrum; (d) Determining an adapted coating thickness for the coating material based on the adapted sample composition and characteristics of the coating; and (e) Repeating the steps (b) to (d) using the adapted sample composition and the adapted coating thickness of the coating material instead of the initial values, wherein the coating thickness is used for determining an absorption of X-rays.

RADIATION DETECTOR AND RADIATION DETECTION APPARATUS
20230228891 · 2023-07-20 ·

A radiation detector includes a radiation detection element, a circuit element, and a housing accommodating the radiation detection element and the circuit element, in which a closed space is provided. The housing has an unblocked opening portion, the closed space is disposed inside the housing, the circuit element is disposed in the closed space, and the closed space is decompressed or filled with an inert gas or a dry gas.

Support system for specified inspection, support method for specified inspection, and non-transitory computer readable medium

The purpose of the present invention is to increase accuracy of a specific test using an electronic microscope and improve work efficiency. Provided is a system that identifies test recipe information corresponding to an object to be tested on the basis of attribute information about a testing sample, and analyzes and evaluates the object to be tested contained in the testing sample by checking image data and element analysis data that are acquired by a measuring device in accordance with a control program for the test recipe information, against reference image data and reference element analysis data that are used as evaluation references for the object to be tested.

Analytical method and apparatus
11536675 · 2022-12-27 · ·

There is provided an analytical method capable of generating a high resolution spectrum of X-rays with an intended energy. The analytical method is for use in an analytical apparatus having a diffraction grating for spectrally dispersing X-rays emanating from a sample, an image sensor for detecting the spectrally dispersed X-rays, and an incident angle control mechanism for controlling the incident angle of X-rays impinging on the diffraction grating. The image sensor has a plurality of photosensitive elements arranged in the direction of energy dispersion. The analytical method starts with specifying an energy of X-rays to be acquired. The incident angle is adjusted based on the specified energy to bring the focal plane of the diffraction grating into positional coincidence with those one or ones of the photosensitive elements which detect X-rays having the specified energy.

SNR for x-ray detectors in SEM systems by using polarization filter
11525791 · 2022-12-13 · ·

A method of performing x-ray spectroscopy surface material analysis of a region of interest of a sample with an evaluation system that includes a scanning electron microscope (SEM) column, an x-ray detector and an x-ray polarizer, comprising: positioning a sample within a field of view of the scanning electron microscope; generating an electron beam having a landing energy about equal to an ionization energy of the materials within the region of interest of the sample; scanning the region of interest with the electron beam set to collide with the sample thereby generating x-rays emitted from near a surface of the sample, the x-rays including characteristic x-rays and Bremsstrahlung radiation; and detecting x-rays generated while the region of interest is scanned by the electron after the x-rays pass through the x-ray polarizer that blocks a higher percentage of the Bremsstrahlung radiation than the characteristic x-rays.

PREPARATION METHOD OF CRYSTAL STRUCTURE ANALYSIS SAMPLE FOR STRUCTURAL ANALYSIS USING CRYSTAL SPONGE METHOD

An object of the present invention is to provide a method of preparing a sample for crystallographic analysis used for structure determination based on the crystalline sponge method. The present invention provides a method of preparing a sample for crystallographic analysis used for structure determination based on the crystalline sponge method, the method including the steps: (A) forming an ionic pair of a target compound of analysis with a counterionic compound, and (B) soaking the ionic pair of the compounds into a crystalline sponge, wherein the target compound of analysis is a basic compound or an acidic compound.

X-ray imaging in cross-section using un-cut lamella with background material
11501951 · 2022-11-15 · ·

A method of performing x-ray spectroscopy material analysis of a region of interest within a cross-section of a sample using an evaluation system that includes a focused ion beam (FIB) column, a scanning electron microscope (SEM) column, and an x-ray detector, including: forming a lamella having first and second opposing side surfaces in the sample by milling, with the FIB column, first and second trenches in the sample to expose the first and second sides surface of the lamella, respectively; depositing background material in the second trench, wherein the background material is selected such that the background material does not include any chemical elements that are expected to be within the region of interest of the sample; generating a charged particle beam with the SEM column and scanning the charged particle beam across a region of interest on the first side surface of the lamella such that the charged particle beam collides with the first side surface of the lamella at a non-vertical angle; and detecting x-rays generated while the region of interest is scanned by the charged particle beam.

METHODS AND SYSTEMS FOR ELEMENTAL MAPPING

Methods and systems for imaging a sample with a charged particle microscope comprises after scanning a region of interest (ROI) of a sample with an electron beam and acquiring X-rays emitted from the sample, scanning the ROI with an ion beam and acquiring ion-induced photons emitted from the sample. A spatial distribution of multiple elements in the sample may be determined based on both the acquired X-rays and the acquired ion-induced photons.

ANALYSIS DEVICE

An analysis and observation device includes: a component analysis section that performs component analysis of an analyte; an output section that outputs one component analysis result to an analysis history holding section; the analysis history holding section that holds a plurality of component analysis results as an analysis history; and an identifying section that identifies a component analysis result similar to the component analysis result obtained by the component analysis section from among the plurality of component analysis results held in the analysis history holding section. The analysis history holding section holds the analysis history to which the component analysis result has been newly added according to the output of the component analysis result by the output section, and the identifying section identifies a component analysis result similar to the one component analysis result from among results of the component analysis performed by the component analysis section.

SPECTROMETER
20220349844 · 2022-11-03 · ·

The invention described herein is a spectrometer having components allowing remote orientation of crystal analyzer and detector.