X-ray Filter System with Liquid Drop Attenuation
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Solution Overview
Problem
Existing X-ray filter systems fail to effectively attenuate X-radiation locally due to varying absorption characteristics of tissues, leading to unclear images and potential excessive radiation exposure during medical examinations.
Innovation Solution
A filter system comprising a channel arrangement with parallel channel sections and a 2-phase fluid flow of absorber and carrier liquids, where the absorber liquid absorbs X-radiation and the carrier liquid is transparent, allowing for precise control of X-ray attenuation by generating specific sequences of liquid drops and directing them into the channel sections within the beam path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a filter system with 2-phase fluid flow and channel arrangement is used, then local attenuation of X-radiation is achieved and image clarity is improved, but device complexity increases compared to simple uniform filters
Solution Approach 1:
The filter system is divided into multiple parallel channel sections, each capable of independent fluid flow control. This segmentation allows localized attenuation adjustments in different regions of the X-ray beam path, enabling precise control over which areas require radiation attenuation while maintaining simplicity in individual channel design
Solution Approach 2:
Different regions of the filter system can have different attenuation properties by controlling the presence or absence of absorber liquid in specific channel sections. This allows each local region to have the quality (attenuation level) appropriate for that particular area of the patient's body, improving image clarity without unnecessarily complicating the entire filter system
2Object-affected harmful factors
If absorber liquid is used to attenuate X-radiation locally, then radiation dose to patient is reduced, but the system requires complex fluid supply and control mechanisms
Solution Approach 1:
The harmful X-radiation is selectively removed or attenuated only in specific regions where it is needed, rather than attenuating the entire beam. The absorber liquid is extracted and placed only in specific channel sections that correspond to regions requiring radiation protection, reducing the radiation dose to the patient without requiring complex attenuation mechanisms throughout the entire system
Solution Approach 2:
The absorber liquid acts as an intermediary substance that can be introduced into or removed from the channel sections as needed. This mediator enables flexible control over radiation attenuation, allowing the system to reduce radiation dose to the patient while the fluid supply device maintains a relatively simple design by only needing to handle the absorption and removal of the liquid
3Adaptability or versatility
If multiple channel sections with 2-phase fluid flow are implemented, then flexible adjustment of absorption patterns is enabled, but manufacturing complexity increases
Solution Approach 1:
The channel arrangement is segmented into multiple independent parallel sections, each of which can be manufactured as a standardized unit. This segmentation enables flexible assembly configurations to create different absorption patterns while maintaining ease of manufacture through modular, repeatable channel section design
Solution Approach 2:
The channel sections are designed with universal characteristics that allow them to serve multiple functions: they can all handle the 2-phase fluid flow, they can all provide attenuation when needed, and they can be arranged in different configurations. This universality enables flexible absorption pattern adjustment while simplifying manufacturing through standardized component design
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 enables localized attenuation of X-radiation, improving image clarity and reducing radiation dose by allowing for flexible adjustment of absorption patterns, thereby enhancing the quality and safety of X-ray examinations.
Implementation Method 1
a supply device for providing a 2-phase fluid flow, said flow containing drops of an absorber liquid which absorbs X-radiation
Data Source
AI summary
A filter system is for the local attenuation of X-radiation. In an embodiment, the filter system includes a filter device, arranged in a beam path of an X-ray apparatus and including a channel arrangement, the channel arrangement including a multiplicity of channel sections extending in parallel on a plane; a supply device to provide a 2-phase fluid flow containing drops of an absorber liquid, to absorb X-radiation and a carrier liquid transparent to X-radiation; and a sorting section, including an input connected to the supply device, a first output connected to the channel arrangement, a second output, and a deflection device to direct individual drops of the absorber liquid to the first output or the second output.