Angled Capillary X-ray Optics for Beam Control
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Solution Overview
Problem
Current x-ray optics struggle to efficiently match the output properties of different x-ray sources to various scientific experiments, as they often require specific beam characteristics such as photon energy, frequency bandwidth, transverse size, and divergence, which existing optics fail to provide effectively.
Innovation Solution
The use of angled capillary optics, specifically mono-capillary optics with metal-coated reflective surfaces, which are configured to receive x-ray light at grazing incidence angles, allowing for efficient collimation and focusing of x-ray beams by reflecting a larger portion of the beam and controlling beam divergence, bandwidth, and photon energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional x-ray optics are used to match output properties of different x-ray sources to scientific experiments, then the beam properties (photon energy, frequency bandwidth, transverse size, divergence) can be adjusted, but the efficiency of beam reflection and focusing is insufficient
Solution Approach 1:
The patent employs capillary optics with curved reflective surfaces (cylindrical or conical geometries) to focus and collimate x-ray beams. The curved inner surfaces of the capillaries enable efficient total external reflection and focusing of x-rays at grazing incidence angles, significantly improving beam reflection efficiency and energy utilization compared to conventional flat or spherical optics.
Solution Approach 2:
The patent utilizes variable grazing incidence angles along the capillary length and different capillary geometries (radius, length, orientation) to control beam properties. By changing the incidence angle parameter and capillary dimensions, the system achieves efficient reflection and focusing while adapting to different x-ray source characteristics and experimental requirements.
2Ease of operation
If multiple reflections are used to control beam properties, then beam direction and focus can be adjusted, but the system complexity and alignment requirements increase
Solution Approach 1:
The patent combines multiple optical functions (collimation, focusing, beam direction control) into a single capillary optic element. The capillary structure integrates the reflective surfaces and geometric configuration needed for these functions, eliminating the need for separate mirrors and complex multi-element optical trains, thereby simplifying alignment and operation.
Solution Approach 2:
The capillary optics serve multiple functions simultaneously: they act as collimators for divergent beams, focusing elements for parallel beams, and beam direction controllers through their angular orientation. This multi-functionality reduces the number of separate optical components needed and simplifies the overall system operation.
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
This configuration enhances the efficiency of x-ray beam reflection and focusing, enabling precise control over beam properties, improving the alignment and utilization of x-ray sources for diverse scientific applications by maintaining high reflectivity and reducing the need for multiple reflections.
Implementation Method 1
the reflective surface includes a metal-coated reflective surface configured to reflect x-ray light having a first energy incident on the metal-coated reflective surface at a first angle, and to reflect x-ray light having a second energy incident on the metal-coated reflective surface at a second angle
Data Source
AI summary
An optical apparatus is provided for manipulating light from x-ray sources (e.g., free electron lasers). In some embodiments, the optical apparatus includes a first capillary optic having a first longitudinal axis and a second capillary optic having a second longitudinal axis that is angled with respect to the first longitudinal axis. The second capillary optic is positioned to receive light directly from the first capillary optic.