GaN X-ray Target Phonon Heat Conduction
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Solution Overview
Problem
Traditional solid X-ray targets face limitations due to poor thermal properties, which lead to overheating and inadequate control over X-ray radiation quality, and are not suitable for studying certain material systems like silicon-based structures.
Innovation Solution
A solid X-ray target comprising a compound formed from a trivalent element capable of generating X-ray radiation and a pentavalent element, with phonon-dominated heat conduction, enhancing both X-ray emission energy and thermal management properties, such as gallium nitride or gallium arsenide, which offer improved heat dissipation and higher melting points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional solid anode materials like tungsten or copper are used to maximize X-ray yield, then the X-ray radiation generation is improved, but the thermal properties (heat capacity, thermal conductivity, melting point) are limited leading to overheating and target consumption
Solution Approach 1:
The patent employs composite materials by forming a compound between a trivalent element (such as gallium) and a pentavalent element (such as arsenic). This compound combines the high atomic number of the trivalent element for effective X-ray generation with the superior thermal properties of the pentavalent element, resolving the contradiction between X-ray yield and thermal management.
Solution Approach 2:
The patent changes the material parameters by selecting specific combinations of trivalent and pentavalent elements that optimize both X-ray generation efficiency and thermal properties. By adjusting the elemental composition and stoichiometry of the compound, the patent achieves a balance between maximizing X-ray yield and ensuring adequate heat dissipation and thermal stability.
2Adaptability or versatility
If traditional X-ray targets like tungsten or copper are used, then general X-ray generation is achieved, but the radiation is not suitable for studying silicon based systems comprising copper structures due to poor contrast
Solution Approach 1:
The patent applies local quality by selecting specific elemental combinations (trivalent and pentavalent elements) that are optimized for particular application scenarios, such as silicon-based systems. The compound's composition can be tailored to produce X-ray radiation with energy characteristics that provide optimal contrast for specific material systems, rather than using a universal material like tungsten for all applications.
3Temperature
If pure elements like gallium or arsenic are used as solid anode target materials, then the thermal properties are improved, but the ability to produce X-ray radiation is limited
Solution Approach 1:
The patent merges the advantages of both trivalent and pentavalent elements by forming a compound between them. The trivalent element contributes to high atomic number and effective X-ray generation, while the pentavalent element provides superior thermal properties. This merging of two element types into a single compound resolves the contradiction between thermal performance and X-ray generation capability.
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 solution enables the production of X-ray radiation with suitable energy for specific applications, like silicon-based systems, while maintaining effective heat management, thereby improving X-ray imaging contrast and extending target durability.
Implementation Method 1
a first one of said materials is capable of generating the X-ray radiation upon interaction with an electron beam
Implementation Method 2
heat conduction between the first and second region is dominantly phonon heat conduction
Data Source
AI summary
A solid X-ray target for generating X-ray radiation is disclosed. The X-ray target includes at least one material selected from a list including trivalent elements; and at least one material selected from a list including pentavalent elements, wherein a first one of the materials is capable of generating the X-ray radiation upon interaction with an electron beam, and a second one of the materials forms a compound with the first one of the materials. An X-ray source including such an X-ray target and an electron source is also disclosed.


