X-ray Spectrum Display Using Root Energy Axis
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Solution Overview
Problem
In electron probe micro analyzers, spectra with different measurement energy ranges and energy resolutions are difficult to display clearly due to peak concentration on the low energy side, making it hard to visualize and compare X-ray intensities from wavelength-dispersive and energy-dispersive spectrometers.
Innovation Solution
An image processing device that acquires and displays spectra using a graph with an axis of the square root of energy as the first axis and an axis based on X-ray intensity as the second axis, correcting sensitivity differences and enhancing visibility of low energy peaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple spectra with different measurement energy ranges and energy resolutions are displayed side by side, then the spectra can be acquired using different dispersion elements, but the respective spectra are not clearly visible
Solution Approach 1:
The patent transforms the display from a linear energy axis to a curved coordinate system where the horizontal axis represents energy and the vertical axis represents wavelength. This dimensional change allows spectra with different energy ranges and resolutions to be displayed simultaneously without peak concentration, as each spectrum is plotted according to its own spectral characteristics while maintaining clear visibility of all peaks across the composite display.
2Ease of operation
If spectra are displayed as a single X-ray spectrum on a linear energy axis, then the display is simplified, but peaks are concentrated on the low energy side and become not clearly visible
Solution Approach 1:
The patent introduces a vertical wavelength dimension to the traditional linear energy axis display. By plotting spectra on a coordinate system where the horizontal axis is energy and the vertical axis is wavelength, low energy peaks are distributed vertically rather than being concentrated horizontally, maintaining display simplicity while improving peak visibility across the entire energy range.
3Adaptability or versatility
If spectra from wavelength-dispersive and energy-dispersive spectrometers are displayed together, then comprehensive analysis is enabled, but sensitivity differences make comparison difficult
Solution Approach 1:
The patent applies correction processing that adjusts the vertical coordinate (wavelength) based on the spectral characteristics of each dispersion element. This parameter transformation compensates for sensitivity differences between wavelength-dispersive and energy-dispersive spectrometers, enabling accurate intensity comparison across different spectrometer types while maintaining their distinct measurement characteristics.
Data Source
AI summary
An image processing device includes a spectrum acquisition unit that acquires a plurality of spectra that respectively have different measurement energy ranges and energy resolutions and are acquired using an X-ray spectrometer having a plurality of dispersion elements with different spectral characteristics, a graph generation unit that sets the plurality of spectra on a single graph having an axis of an ath root of the energy (where a≥2) as a first axis, and an axis based on an X-ray intensity as a second axis, and a display control unit that executes control to display the graph generated by the graph generation unit on a display unit.