Radiation Window Protective Device for X-Ray Transmission

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Solution Overview

Problem

X-ray device windows are fragile and prone to damage from foreign objects or samples, leading to costly replacements and downtime, as thin windows are necessary for low-energy X-ray transmission but vulnerable to contact.

Innovation Solution

A protective device with radiation path openings is designed to surround the window, allowing X-ray transmission while preventing external forces from damaging it, maintaining the sample's proximity to the detector and allowing for easy replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If thin windows are used to allow transmission of low energy X-rays, then X-ray transmission capability is improved, but window strength and resistance to damage deteriorates

Engineering Contradiction:
ImproveX-ray transmission capabilityVSAvoidwindow strength
Core Design Contradiction:
Use of energy by moving objectVSStrength

Solution Approach 1:

A protective device is introduced as an intermediary component between the external environment and the thin radiation window. This protective device has openings that allow radiation to pass through while providing mechanical protection to the window, preventing direct contact with foreign objects or samples.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective device is designed with multiple openings rather than a solid structure, segmenting the protective function into discrete radiation-transmissive regions. This allows the protective device to maintain structural integrity and protection capability while permitting radiation transmission through the segmented openings.

Inventive Principle:
Principle #1Segmentation

2Use of energy by moving object

If thin windows are used to allow transmission of low energy X-rays, then X-ray transmission capability is improved, but susceptibility to damage by foreign objects or samples increases

Engineering Contradiction:
ImproveX-ray transmission capabilityVSAvoidsusceptibility to damage
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The protective device serves as a mediator that blocks harmful mechanical contact while allowing beneficial radiation transmission. It is positioned between potential damaging objects (foreign objects or samples) and the thin window, preventing direct interaction that could cause damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective device provides preemptive protection by being in place before any potential damage can occur. It creates a protective barrier that absorbs or deflects external forces before they can reach the vulnerable thin window, cushioning it against potential impacts.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If protective measures are added to protect the window, then window protection is improved, but device complexity increases

Engineering Contradiction:
Improvewindow protectionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The protective function is extracted as a separate, removable device rather than being integrated into the main chamber structure. This allows the protective device to be independently designed, installed, and replaced without modifying the core X-ray device, thereby minimizing the increase in overall device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The protective device is designed to be adaptable and potentially reusable across different configurations or applications. By creating a universal protective component that can be applied to protect radiation windows in various settings, the complexity increase is amortized across multiple uses rather than requiring custom solutions for each case.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Reliability

If protective measures are added to protect the window, then window protection is improved, but manufacturing cost increases

Engineering Contradiction:
Improvewindow protectionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The protective device is designed as a simpler, potentially disposable or easily replaceable component compared to the expensive radiation window it protects. By using less expensive materials and simpler construction for the protective device, the overall cost increase is minimized while still achieving the protection function.

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

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

The protective device effectively prevents window damage, reduces operational costs, and maintains analysis intensity by allowing close sample-detector proximity without increasing the risk of contact, enabling efficient and economical X-ray testing.

Implementation Method 1

A protective device with radiation path openings is designed to surround the window, allowing X-ray transmission while preventing external forces from damaging it

Methodology Applied
Scientific EffectX-ray transmission: X-Ray

Data Source

PatentEP2839498B1Apparatus for protecting a radiation window
Publication Date: 2017.12.06 BRUKER AXS HANDHELD INC
  • EP2839498B1 patent drawingFigure 1
  • EP2839498B1 patent drawingFigure 2
  • EP2839498B1 patent drawingFigure 3

AI summary

A radiation detector assembly and a method for using the same are provided. The radiation detector assembly includes an aperture, a window covering the aperture, the window is configured to permit radiation to pass through, the window is configured to prevent the passage of fluids and particles through the aperture, and a protective device covers the window. The protective device includes a plurality of holes at least partially aligned with the aperture, is configured to permit at least some radiation to pass through the holes, is configured to prevent objects larger than the holes to contact the window and is configured to withstand external forces and prevent those forces from damaging the window.