Rotating Disc X-ray Generator with Liquid Target
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Solution Overview
Problem
Conventional X-ray generating devices with liquid metal jets require complex structures and precise alignment for high luminance X-ray production, which complicates the design and stability of the device.
Innovation Solution
An X-ray generating device with a disc-like rotating body immersed in a liquid target raw material, where an energy beam is applied to the rotating body to generate X-rays, utilizing a simple structure with energy and X-ray windows for stable operation, and catching members to prevent raw material from adhering to windows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a liquid metal jet is used as the target in the X-ray tube, then high luminance X-rays can be obtained, but the device structure becomes complicated and requires precise alignment
Solution Approach 1:
The patent applies the dynamics principle by using a rotating disc structure that continuously brings fresh liquid target material into the irradiation zone. The disc rotates to dynamically update the target surface, maintaining high luminance while simplifying the overall structure compared to complex liquid metal jet systems. The rotation speed and disc design optimize the dynamic interaction between the electron beam and liquid target material.
Solution Approach 2:
The patent extracts the essential function of liquid target material interaction from the complex liquid metal jet system. By using a rotating disc with liquid material applied to its surface, the invention separates the target material delivery mechanism from the irradiation system, eliminating the need for complex jet generation and alignment structures while maintaining the high luminance X-ray generation capability.
2Device complexity
If a liquid target raw material is used at room temperature, then the structure can be simplified without heating mechanisms, but the raw material may fly and spread in the chamber
Solution Approach 1:
The rotating disc structure dynamically controls the liquid target material, using centrifugal force and rotational motion to contain the material on the disc surface. The rotation creates a dynamic barrier that prevents the liquid material from flying or spreading into the chamber, eliminating the need for heating mechanisms while maintaining material containment.
Solution Approach 2:
The disc-shaped rotating body provides a curved surface that naturally contains the liquid target material through surface tension and geometry. The curved disc surface prevents the liquid from spreading flat across the chamber, confining it to the rotating disc area while allowing structural simplification.
3Illumination intensity
If the target raw material is applied onto a rotating body, then high luminance X-rays can be generated with simple structure, but the raw material may adhere to the windows
Solution Approach 1:
The patent extracts the harmful adhesion effect from the system by introducing separate catching members positioned between the rotating disc and the windows. These catching members selectively remove only the problematic liquid material that escapes the disc, while allowing X-rays to pass through unaffected. This separates the X-ray generation function from the material containment function.
Solution Approach 2:
The catching members act as intermediary elements between the rotating target disc and the chamber windows. These intermediaries intercept and remove stray liquid material before it can adhere to the windows, while being transparent or permeable to X-rays. This mediator approach protects the windows without interfering with the high luminance X-ray generation process.
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 device achieves high luminance X-ray production with a simpler structure, maintaining stability and preventing raw material from adhering to windows, allowing for efficient X-ray generation without the need for high-temperature maintenance or heat-resistant components.
Implementation Method 1
an energy beam inlet window disposed at (in) an opening of the chamber and configured to transmit an energy beam, which is directed to the target raw material on the surface of the rotating body
Implementation Method 2
An electric current is caused to flow to a cathode filament to heat the cathode filament, and a high voltage is applied across the anode and the cathode. Then, the minus thermo-electrons generated from the filament impinge upon a target on the surface of the anode at a high speed
Data Source
AI summary
A X-ray generating device includes a chamber, a rotating body in the chamber, a starting material storage vessel for storing a target starting material in liquid form, and a starting material supply mechanism for applying the target starting material onto a surface of the rotating body. The X-ray generating device also includes an energy beam inlet window disposed at an opening of the chamber and configured to transmit an energy beam, which will be directed onto the target starting material on the surface of the rotating body and introduce the energy beam from the exterior of the chamber to the interior of the chamber, and an X-ray outlet window disposed at the opening of the chamber and configured to transmit the X-rays, which are generated upon irradiating the target starting material with the energy beam, and allow the X-rays to proceed to the exterior of the chamber.