Bismuth Oxide X-ray Tube Holder for Compact Shielding
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Solution Overview
Problem
Existing X-ray generation devices face challenges with miniaturization and environmental impact due to the use of lead for shielding, and high manufacturing costs associated with tungsten alternatives, while also requiring thick insulators to prevent electric discharge and scattering.
Innovation Solution
The use of a bismuth oxide-based X-ray tube holder with slits for both X-ray shielding and insulation, allowing for miniaturization and efficient cooling, replacing lead and reducing costs by utilizing a less expensive material with high X-ray shielding and insulating properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If lead is used for the X-ray shielding member, then the X-ray shielding effect is improved, but the environmental harm and manufacturing cost increase
Solution Approach 1:
The patent changes the material parameter from lead to bismuth oxide, maintaining the X-ray shielding function while eliminating environmental harm. Bismuth oxide has similar or superior X-ray attenuation properties compared to lead, but is non-toxic and environmentally friendly, thus resolving the contradiction between shielding effectiveness and environmental safety.
Solution Approach 2:
The patent employs bismuth oxide which is more cost-effective than tungsten and environmentally superior to lead. While bismuth oxide may have different durability characteristics, its lower cost and environmental benefits make it a preferable replacement, addressing both cost and environmental concerns simultaneously.
2Object-affected harmful factors
If lead is used for the X-ray shielding member, then the X-ray shielding effect is improved, but the manufacturing cost increases
Solution Approach 1:
The patent substitutes expensive tungsten and harmful lead with bismuth oxide, which offers comparable or better X-ray shielding performance at a lower cost. This material substitution directly addresses the manufacturing cost issue while maintaining the required shielding effectiveness.
Solution Approach 2:
By changing the material composition to bismuth oxide, the patent achieves the same shielding function at reduced cost. The material properties of bismuth oxide allow for effective X-ray attenuation without the high material costs associated with tungsten or the environmental remediation costs associated with lead.
3Reliability
If thick insulators are used to prevent electric discharge, then the insulation effect is improved, but the device size increases
Solution Approach 1:
The patent uses bismuth oxide as a composite material that simultaneously provides both X-ray shielding and electrical insulation functions. This multi-functionality eliminates the need for separate thick insulator layers, thereby maintaining high insulation effectiveness while significantly reducing the overall device size.
Solution Approach 2:
The bismuth oxide holder structure serves multiple functions: X-ray shielding, electrical insulation, and mechanical support. By integrating these functions into a single component, the patent achieves the required insulation effect without adding the volume penalty of separate insulator layers, thus resolving the size-insulation contradiction.
4Reliability
If thick insulators are used to prevent electric discharge, then the insulation effect is improved, but the device complexity increases
Solution Approach 1:
The patent employs bismuth oxide as a composite material that inherently provides both X-ray shielding and electrical insulation properties. This eliminates the need for multiple separate insulator components and their associated assembly complexities, thereby maintaining high insulation reliability while simplifying the overall device structure.
Solution Approach 2:
The bismuth oxide holder integrates multiple functions (shielding, insulation, support) into a single component, reducing the number of parts and assembly steps. This multi-functionality directly reduces device complexity while maintaining the required insulation effect, resolving the contradiction between reliability and complexity.
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 enables a lead-free, compact X-ray generation device with improved cooling performance and reduced manufacturing costs, achieving effective X-ray shielding and insulation without the need for expensive tungsten.
Implementation Method 1
the insulating oil 4 also has a function of cooling down the X-ray tube 2
Implementation Method 2
the slits allowing the insulating oil to circulate between an inside and an outside of the X-ray tube holder
Implementation Method 3
a material of the X-ray tube holder contains at least bismuth oxide... the X-ray shielding effect is proportional to the thickness of the X-ray shielding member
Implementation Method 4
the insulators 21 and 31 are disposed around the X-ray tube 2, and the insulating oil 4 is filled. To prevent this electric discharge
Implementation Method 5
The thermal electrons collide with the anode 5 on the opposite side (this spot is the focal spot F). The energy of this collision generates an X ray
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is an X-ray generation device including an X-ray tube and a high-voltage generation unit arranged inside a housing and also having insulating oil filled in the housing, which uses no lead and is small in size, thereby achieving a reduction in manufacturing cost, and which also has high cooling performance. An X-ray generation device 1 includes an X-ray tube 2 and a high-voltage generation unit 3 inside a housing 8 and also has insulating oil 4 filled in the housing 8, the X-ray tube 2 being configured to generate an X ray, the X-ray generation device 1 characterized in that the X-ray tube 2 is arranged inside an X-ray tube holder 10, a material of the X-ray tube holder 10 contains at least bismuth oxide and a resin, and the X-ray tube holder 10 includes an opening and a plurality of slits 11, the opening being provided in a portion corresponding to an X-ray irradiation window 7 through which the X-ray tube 2 applies the X ray, the slits 11 allowing the insulating oil 4 to circulate between an inside and an outside of the X-ray tube holder 10.