Distributed X-ray Light Source with Dynamic Electron Beam Control
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Solution Overview
Problem
Current distributed X-ray light sources face challenges with high heating power and thermal management due to the large number of cathode assemblies, leading to increased production costs and complexity in cooling systems.
Innovation Solution
A distributed X-ray light source design with a voltage control module that adjusts the voltage difference between focusing electrodes to control electron beam positions on the anode target, allowing fewer cathode assemblies to produce multiple X-ray radiation sources, reducing thermal management difficulties and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of cathode assemblies is increased to produce more X-ray radiation sources, then the imaging resolution is improved, but the heating power and thermal management difficulty increase
Solution Approach 1:
The patent implements dynamic control of electron beam positions by adjusting voltage differences between first and second focusing electrodes. This allows a fixed number of cathode assemblies to dynamically generate multiple moving target spots on the anode target, achieving high-resolution imaging without increasing the number of cathode assemblies or their heating power
Solution Approach 2:
The patent introduces temporal dimension to the imaging process by making target spots move along the anode target surface. Instead of requiring multiple static cathode assemblies arranged in space, the system uses time-varying voltage control to create the effect of multiple radiation sources, reducing spatial complexity and thermal load
2Measurement precision
If the number of cathode assemblies is increased to produce more X-ray radiation sources, then the imaging resolution is improved, but the production cost increases
Solution Approach 1:
Each focusing electrode structure is designed to perform multiple functions: it focuses electron beams from cathode assemblies and simultaneously controls the position of target spots on the anode target through voltage adjustment. This multi-functionality reduces the need for additional components and cathode assemblies, lowering production costs while maintaining imaging resolution
Solution Approach 2:
The patent changes the voltage parameter of focusing electrodes to control electron beam positions and create multiple target spots. By adjusting this electrical parameter rather than increasing the number of physical cathode assemblies, the system achieves high-resolution imaging at lower production cost
3Measurement precision
If the number of cathode assemblies is increased to produce more X-ray radiation sources, then the imaging resolution is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the position control function from the cathode assembly structure itself and transfers it to the focusing electrode system. By separating these functions, the cathode assemblies remain simple and few in number, reducing the complexity of their cooling systems while the focusing electrodes handle the complexity of generating multiple target spots through voltage control
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 design effectively reduces the number of cathode assemblies needed, lowering thermal loads and production costs while maintaining high-resolution imaging capabilities.
Implementation Method 1
a plurality of arranged cathode assemblies, configured to emit electron beams
Implementation Method 2
electron beams emitted from a cathode 1011 in the cathode assembly pass through the compensation electrode 103 and the focusing electrode 104, and bombard only one target spot on the anode target 102, and then an X-ray radiation source is generated
Implementation Method 3
focusing electrodes being configured to focus the electron beams emitted by the cathode assemblies
Implementation Method 4
the focusing electrode corresponding to at least one cathode assembly in the plurality of the cathode assemblies includes a first electrode and a second electrode which are separately provided, and an electron beam channel is formed between the first electrode and the second electrode
Data Source
AI summary
A distributed X-ray light source comprises: a plurality of arranged cathode assemblies used for emitting electron beams; an anode target used for receiving the electron beams emitted by the cathode assemblies; and compensation electrodes and focusing electrodes provided in sequence between the plurality of the cathode assemblies and the anode target, the compensation electrode being used for adjusting electric field strength at two ends of a grid structure in each cathode assembly, and the focusing electrode being used for focusing the electron beams emitted by the cathode assemblies, wherein the focusing electrode corresponding to at least one cathode assembly in the plurality of the cathode assemblies comprises a first electrode and a second electrode which are separately provided, and an electron beam channel is formed between the first electrode and the second electrode.