X-ray Diffraction Display Aligning 2D Patterns with 1D Profiles
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Solution Overview
Problem
Conventional X-ray diffraction measurement methods fail to effectively utilize circumferential X-ray intensity data, making it difficult to accurately identify crystal phases in samples with non-ideal conditions, such as strongly oriented substances or coarse particles, due to the complexity in comparing one-dimensional and two-dimensional diffraction patterns.
Innovation Solution
The method aligns two-dimensional diffraction patterns with one-dimensional profiles by displaying X-ray intensity data linearly and coinciding the 2θ axes, allowing for the accurate recognition of fragmentary or spot-shaped images by overlaying colored bars on the two-dimensional patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional X-ray diffraction measurement methods are used to obtain two-dimensional diffraction patterns, then measurement data is collected, but the circumferential X-ray intensity data cannot be effectively utilized and crystal phase identification becomes difficult
Solution Approach 1:
The patent transforms the two-dimensional diffraction pattern data into a one-dimensional profile by integrating circumferential intensity data at each 2θ position. This dimensional reduction allows effective utilization of circumferential X-ray intensity information while maintaining the ability to identify crystal phases through the resulting one-dimensional diffraction profile.
2Loss of information
If one-dimensional and two-dimensional diffraction patterns are displayed separately, then data representation is provided, but visual correlation and accurate identification become complex
Solution Approach 1:
The patent merges the one-dimensional diffraction profile with the two-dimensional diffraction pattern display by overlaying the one-dimensional profile on the two-dimensional pattern. This integration allows visual correlation between circumferential intensity variations and angular positions without requiring separate displays, thereby simplifying the overall display system while improving identification accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables quick, easy, and accurate identification of crystal phases by visually correlating X-ray intensity in the circumferential direction with 2θ angular positions, enhancing the clarity and precision of crystal phase identification.
Implementation Method 1
a measurement in which a sample is irradiated with X-rays and the X-rays diffracted by the sample are detected by an X-ray detector
Implementation Method 2
an X-ray detection surface that receives the X-rays in a two-dimensional region; an analyzer that produces, on the basis of output signals from the plurality of pixels, circumferential-direction X-ray intensity data
Data Source
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AI summary
Provided is a method for displaying measurement results from X-ray diffraction measurement, which is a measurement in which a sample is irradiated with X-rays and the X-rays diffracted by the sample are detected by an X-ray detector, wherein the method comprises: (1)forming a one-dimensional diffraction profile by displaying, on the basis of output data from an X-ray detector, a 2θ-I profile within a coordinate system in which one orthogonal coordinate axis shows 2θ angle values and another orthogonal coordinate axis shows X-ray intensity values; (2)forming a two-dimensional diffraction pattern by linearly displaying X-ray intensity data, for each 2θ angle value and on the basis of output data from the X-ray detector; the X-ray intensity data being present in the circumferential direction of a plurality of Debye rings formed at each 2θ angle by X-rays diffracted by the sample; and (3)displaying the two-dimensional diffraction pattern and the one-dimensional diffraction profile so as to be aligned such that the 2θ angle values of both coincide with each other. The correlation between X-ray information in the circumferential direction of a Debye ring and a 2θ angular position can be recognized in a visually clear and accurate manner.