Multi-fraction X-ray Sample Holder for Automated Particle Analysis
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Solution Overview
Problem
Current imaging modalities, such as X-ray computed tomography (CT) microscopy systems, face limitations in analyzing multiple size fractions and samples efficiently, as they require manual remounting and are constrained by the capacity of automated sample loaders.
Innovation Solution
A sample assembly for X-ray microscopy systems comprising an outer tube with spacers to hold multiple samples of different sizes, allowing for automated sequential analysis within a single holder, utilizing a low-Z material construction to minimize interference with x-ray imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple samples are analyzed using automated sample loaders, then productivity is improved, but the maximum number of samples that can be mounted is limited
Solution Approach 1:
The sample holder is divided into multiple compartments or positions within a single holder, allowing multiple samples to be mounted simultaneously. Each compartment can hold a separate sample, effectively segmenting the holder's capacity to accommodate multiple discrete samples for sequential analysis.
Solution Approach 2:
Multiple samples are arranged in a nested or stacked configuration within the single sample holder, maximizing the use of available space. This allows the holder to contain more samples than a traditional single-sample holder by utilizing vertical or hierarchical arrangement of sample containers.
2Measurement precision
If manual remounting is performed for each sample fraction, then measurement precision is maintained, but loss of time increases
Solution Approach 1:
Multiple samples are pre-mounted and positioned within the single sample holder before analysis begins. This preliminary arrangement eliminates the need for time-consuming manual remounting operations during the analysis sequence, as all samples are already in place and ready for sequential scanning.
Solution Approach 2:
The sample holder is designed to serve multiple functions by accommodating different sample fractions simultaneously in a single holder structure. This multi-functional design allows the same holder to analyze multiple particle size fractions without requiring separate holders or remounting operations.
3Ease of operation
If automated sample loading is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The sample holder is segmented into multiple standardized compartments that can be easily loaded with samples. This segmentation simplifies the automation process by providing discrete, accessible positions for sample placement, making it easier for automated systems to handle and position multiple samples sequentially.
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 the efficient and automated analysis of multiple size fractions and samples, reducing cross-contamination and increasing the statistical representation of particle behavior without the need for frequent remounting, while maintaining high imaging quality.
Implementation Method 1
These systems irradiate the samples with x-rays, typically in a range between 1 and several hundred keV. 2D projection images are collected at multiple angles and 3D volumes of the sample are reconstructed from these projections.
Data Source
AI summary
An x-ray minerology analysis system includes a sample assembly for an x-ray microscopy system. It comprises an outer tube and a bottom plug sealing an inner bore of the outer tube, wherein the outer tube contains powder to be analysed by the x-ray microscopy system.