Multi-Beam X-Ray Source with Beam Deflection for Dense Focal Spots
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Solution Overview
Problem
Existing multi-beam X-ray sources face limitations in achieving high X-ray beam packing density and are prone to malfunctions due to inoperable cathodes, leading to reduced production yield and increased costs.
Innovation Solution
A multi-beam X-ray source with a deflector device adjacent to the electron beam cathode system that manipulates electron beams using electric and/or magnetic fields to redirect them to desired focal spots, compensating for malfunctioning cathodes and increasing packing density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple cathodes are integrated to form a multi-beam X-ray source, then multiple X-ray beams can be generated simultaneously, but the physical dimensions of cathodes and focusing electrodes limit the achievable packing density of focal spots on the anode
Solution Approach 1:
Multiple cathodes are integrated into a single multi-beam X-ray source assembly with a common anode, merging multiple electron beam generation systems into one unified structure. This allows multiple X-ray beams to be generated simultaneously while sharing common components, thereby improving packing density compared to separate X-ray tubes.
Solution Approach 2:
The patent arranges cathodes and focal spots in a two-dimensional array configuration rather than a linear arrangement. By utilizing both horizontal and vertical dimensions on the anode surface, the system achieves higher packing density for multiple focal spots, allowing more X-ray beams to be generated within the same physical footprint.
2Reliability
If a deflector device is added to redirect electron beams to compensate for malfunctioning cathodes, then operability is improved, but device complexity increases
Solution Approach 1:
A deflector device is introduced as an intermediary component between the cathodes and the anode. This deflector uses electric or magnetic fields to redirect electron beams from functioning cathodes to intended focal spots when other cathodes malfunction, thereby compensating for failures without requiring physical replacement of the entire X-ray source.
Solution Approach 2:
The deflector device changes the trajectory parameters of electron beams by applying electric or magnetic fields. By adjusting the field strength and direction, the system can dynamically redirect electron beams to different focal spots on the anode, enabling compensation for malfunctioning cathodes through parameter modification rather than structural changes.
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 high X-ray beam packing density and compensates for inoperable cathodes, enhancing production yield and reducing costs by improving operability.
Implementation Method 1
The deflector generates an electric field and/or a magnetic field to laterally deflect the electron beam
Implementation Method 2
The deflector generates an electric field and/or a magnetic field to laterally deflect the electron beam
Implementation Method 3
The deflector generates an electric field and/or a magnetic field to laterally deflect the electron beam
Implementation Method 4
The anode carries a high voltage (e.g., 10 kV or above). Under these conditions, the electrons emitted by the cathode are accelerated by the electric field generated by the anode
Implementation Method 5
the cathode (e.g., a hot filament, a field emission emitter, etc.) emits electrons
Implementation Method 6
Upon the electrons impacting the anode (e.g., at a focal spot or focal point on the anode), X-ray radiation is generated via the impact/interaction between the electron beam and the anode
Data Source
AI summary
An X-ray source device includes an anode and an electron beam cathode system arranged to emit a plurality of electron beams therefrom toward the anode. A deflector device is disposed adjacent to the electron beam cathode system to manipulate interaction of one or more of the electron beams emitted by the electron beam cathode system with the anode. An associated method of forming an X-ray source device is also provided.