Segmented Soller slit collimator for x-ray spectral resolution
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Solution Overview
Problem
Conventional x-ray spectrometers face challenges with large space requirements, high costs, and varying angular resolution due to the need for multiple collimators and complex assembly processes, which hinder efficient adjustment of spectral resolution for different analytical tasks.
Innovation Solution
A segmented collimator assembly with displaceable segments along the axis of a Soller slit, allowing for precise adjustment of angular resolution without changing the cross-sectional area or field of view, using a collimator frame to guide and position the segments, and actuators for automated displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple collimators with different lamella spacing are installed to achieve different angular resolutions, then the adaptability to different analytical requirements is improved, but the device complexity and space requirements increase
Solution Approach 1:
The Soller slit is divided into multiple segments along the beam direction, with each segment containing a portion of the lamellae. These segments can be independently displaced relative to each other, allowing different combinations of segments to create different effective lamella spacing patterns. This segmentation enables multiple angular resolution settings within a single collimator structure, eliminating the need for multiple separate collimators and complex changers.
Solution Approach 2:
The collimator incorporates movable segments that can be dynamically adjusted during operation. By displacing segments along the beam direction, the system can change its collimation characteristics on-the-fly, transforming a static single-resolution collimator into a dynamic multi-resolution system. This dynamic adjustment capability provides adaptability comparable to having multiple collimators while using a single device.
2Adaptability or versatility
If multiple collimators are installed with motorized drives for alternation, then the adaptability to different analytical tasks is improved, but the space requirement and volume of the beam path increase
Solution Approach 1:
The invention merges the functionality of multiple separate collimators into a single integrated Soller slit structure. By combining multiple segments with adjustable positions into one collimator body, the system achieves the spectral resolution adjustability of multiple collimators while occupying the space of only one collimator, significantly reducing the beam path volume requirement.
3Manufacturing precision
If more lamellae are used to achieve smaller lamella spacing and better angular resolution, then the manufacturing precision and angular resolution are improved, but the material use and production costs increase
Solution Approach 1:
Instead of creating a single Soller slit with many closely spaced lamellae (which requires significant material), the invention segments the collimator into multiple sections. Each segment can have fewer lamellae with larger spacing, but by combining and displacing segments, the system achieves the equivalent angular resolution of a high-density lamellae structure. This approach reduces material consumption while maintaining manufacturing precision.
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 compact, cost-effective, and material-saving adjustments of spectral resolution with consistent angular resolution across the beam path, improving analytical efficiency and simplifying the setup process.
Implementation Method 1
a Soller slit for collimating x-ray radiation with respect to the direction of an axis of the Soller slit, wherein the Soller slit has a plurality of lamellae spaced apart from one another having lamella planes parallel to one another
Implementation Method 2
at least one of the segments is displaceable with respect to the collimator frame and with respect to other segments of the Soller slit
Data Source
AI summary
A collimator assembly for an x-ray optical system having a Soller slit for collimation of x-ray radiation with respect to a direction of an axis (z) of the Soller slit, wherein the Soller slit has a plurality of lamellae spaced apart from one another and having lamella planes parallel to one another, is characterized in that the Soller slit comprises a plurality of segments which are arranged along the axis and are separated from one another. The arrangement also has a collimator frame for enclosing and guiding the plurality of segments, and at least one of the plurality of segments is displaceable with respect to the collimator frame and relative to other segments. A simple but nonetheless accurate adjustment of the spectral resolution of an x-ray spectrometer to a respective different analytical application is thus enabled in a compact and cost-effective manner.