X-ray Source With Shielding Channel For Adjustable Radiation Angle
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Solution Overview
Problem
Existing X-ray tubes lack the ability to adjust the radiation angle of emitted X-rays, limiting their application in various medical and industrial imaging techniques.
Innovation Solution
An X-ray source design featuring a cathode with a shielding channel, emitters around the channel, and a gate electrode with corresponding gate holes, allowing for adjustable radiation angles by controlling the diameter and shape of the X-ray beam, enabling the generation of subparallel or wide-angle X-rays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an X-ray tube radiates X-rays in all directions, then the X-ray coverage area is maximized, but the radiation angle cannot be adjusted for specific imaging applications
Solution Approach 1:
The cathode is segmented into multiple independent emitter units arranged around the shielding channel. Each emitter can be independently controlled to emit electrons, and the shielding channel can be selectively positioned to control X-ray radiation direction. This segmentation enables flexible adjustment of radiation angles for different imaging applications while maintaining a manageable structural complexity.
Solution Approach 2:
The patent implements dynamic control of the radiation angle by enabling selective activation of different emitter groups and adjusting the shielding channel position. This dynamic capability allows the X-ray tube to adapt its radiation pattern in real-time based on imaging requirements, transforming a static structure into a dynamically adjustable system.
2Adaptability or versatility
If multiple X-ray sources are arranged in an array form, then the functionality for different imaging modes is enhanced, but the device complexity and control difficulty increase
Solution Approach 1:
Each X-ray source in the array is designed with universal components including a shielding channel, emitters arranged around the channel, and a gate electrode with corresponding gate holes. This universal design allows any emitter within the array to function independently or in combination with others, enabling flexible configuration for various imaging modes such as tomography, subparallel X-ray imaging, and wide-angle imaging without requiring different hardware for each mode.
Solution Approach 2:
The patent implements queue control capability that allows selective activation and coordination of multiple X-ray sources in the array. By controlling which emitters are active and their relative timing, the system can generate different imaging patterns and modes, providing feedback-based coordination that simplifies the operation of multiple sources.
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
Enables precise control over the radiation angle of X-rays, facilitating the production of subparallel or plane X-rays suitable for tomography and other applications by adjusting the shielding channel's dimensions and emitter placement.
Implementation Method 1
a cathode including a shielding channel through which an X-ray passes
Implementation Method 2
emitters formed on an upper surface of the cathode, and arranged around the shielding channel
Implementation Method 3
when an E-beam collides with an anode target, kinetic energy of the electrons is converted into an X-ray and the X-ray is emitted
Data Source
AI summary
Disclosed is an X-ray source, including: a cathode including a shielding channel through which an X-ray passes; emitters formed on an upper surface of the cathode, and arranged around the shielding channel; an anode positioned so as to face the cathode, and including an anode target in which an E-beam is focused; and a gate electrode positioned between the cathode and the anode, and including gate holes at positions corresponding to those of the emitters.