X-ray Optical System Modular Segmentation Dead Zone Elimination

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Solution Overview

Problem

Current X-ray optical systems, such as Wolter I telescopes, face challenges in producing large diameter optics with high precision and resolution, requiring expensive and complex manufacturing processes, and suffer from a small field of view and dead zones that reduce their effectiveness.

Innovation Solution

The proposed X-ray optical system uses a geometric layout of thin, rotationally symmetric modules with square apertures and filling dead zones with parabolic or elliptic foils, allowing for efficient aperture utilization and elimination of dead zones, using commercially available substrates and enabling rotation for increased band homogeneity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If Wolter I telescope design with parabolic andhyperbolic mirrors is used, then X-ray focusing capability is improved, but manufacturing complexity and cost increase significantly

Engineering Contradiction:
ImproveX-ray focusing precisionVSAvoidoptical system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The optical system is divided into multiple identical modules, each containing simplified optical elements. Instead of manufacturing one complex Wolter I telescope, the system uses many identical modular units with planar or cylindrical mirrors, reducing individual manufacturing complexity while achieving collective focusing capability through geometric arrangement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses identical replicated modules throughout the optical system. Each module is a copy of the others, allowing standardized manufacturing processes and simplifying production. The complex Wolter I geometry is replaced by copying simpler modular units in large numbers to achieve the desired optical performance.

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If large diameter mirrors are manufactured using polishing technology, then optical precision is improved, but production time and cost increase

Engineering Contradiction:
Improvemirror surface precisionVSAvoidproduction time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Large mirrors are divided into many smaller mirror segments arranged in modular units. Each small mirror can be manufactured quickly using simple processes, and the collective array achieves the effective aperture of a large mirror without requiring polishing of a single large surface.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs inexpensive, simple-to-manufacture mirror substrates that do not require expensive polishing. These simpler optical elements are used in large numbers, trading individual component simplicity for system-level performance, thereby reducing both manufacturing cost and time.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If replication technology is used for smaller diameter mirrors, then manufacturing cost is reduced, but mandrel manufacturing complexity increases

Engineering Contradiction:
Improvemirror production easeVSAvoidmandrel manufacturing complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent extracts the complex mandrel manufacturing requirement from the process by using simple planar or cylindrical substrates instead of complex rotationally symmetric mandrels. The optical performance is achieved through the geometric arrangement of many simple elements rather than through complex individual component shaping.

Inventive Principle:
Principle #2Taking out (Extraction)

4Measurement precision

If X-ray optical system uses traditional Wolter I design, then focusing resolution is improved, but field of view remains limited

Engineering Contradiction:
Improvefocusing resolutionVSAvoidfield of view
Core Design Contradiction:
Measurement precisionVSArea of moving object

Solution Approach 1:

The patent transitions from the traditional two-dimensional Wolter I mirror surface to a three-dimensional array of modular units distributed in space. This dimensional expansion allows the system to capture X-rays from a wider angular range while maintaining focusing capability through the collective geometry of the modular arrangement.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 solution enhances the effective aperture of the X-ray optical system, improves resolution, and allows for both astrophysical and laboratory applications, including EUV/X-ray lithography and particle focusing, without the need for expensive mandrels and complex manufacturing.

Implementation Method 1

The proposed X-ray optical system is based on the total reflection

Methodology Applied
Scientific EffectTotal reflection: Total Internal Reflection

Data Source

PatentEP2710610B1X-ray optical system
Publication Date: 2019.09.11 RIGAKU INNOVATIVE TECH EURO S R O
  • EP2710610B1 patent drawingFigure 1~3
  • EP2710610B1 patent drawingFigure 4~5

AI summary

X-ray optical system composed of modules wit thin reflection foils or rectangular small channels. The optical system (3) is composed of minimum 5 segments (2), each segment (2) is assembled from minimum one module (1) and the diagonals of all modules (1) in a segment (2) are always in parallel with the symmetry axis (5) of the segment (2) and the segment (2) is a sector with a central angle from 18° to 72°, in the narrowest part of which is the dysfunctional or "dead"z one (6). The X-ray optical system has this dead zone (6), which can be filled with thin, rotationally symmetric foils (7), laid out in another geometric layout so that a common focus of the whole optical system (3) is formed. The X-ray optical system (3) has individual segments (2) laid out so that the aperture of the X-ray optical system (3) approaches the circular aperture and the symmetry axis (5) of a segment (2) always intersects the optical axis (4) of the optical system (3).