Multi-color X-ray Generator Laser Collision
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Solution Overview
Problem
Existing X-ray generators face challenges in quickly switching between different monochromatic hard X-ray energies, which is crucial for applications like dynamic angiography where fast image capture is necessary to prevent subject movement, and current technologies have limitations in precision, collision efficiency, and X-ray generation output.
Innovation Solution
A multi-color X-ray generator that uses a pulse electron beam and a composite laser generator to produce multiple monochromatic hard X-rays by colliding pulse laser lights with the electron beam along a rectilinear orbit, allowing for high-speed switching of X-ray wavelengths without physical device movement, maximizing collision efficiency, and utilizing a laser circulation system to enhance X-ray generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a conventional X-ray tube or synchrotron is used to generate monochromatic hard X-rays, then X-ray generation is achieved, but the switching speed between different X-ray energies is slow and the facility size is large
Solution Approach 1:
The system segments the X-ray generation process by using a single high-energy electron beam that collides with multiple laser beams of different wavelengths sequentially. This eliminates the need for large synchrotron facilities while achieving fast switching between different X-ray energies through rapid laser wavelength selection.
Solution Approach 2:
The invention replaces mechanical or physical switching mechanisms (such as changing electron beam energy or physically moving components) with optical control. By using lasers of different wavelengths colliding with a constant high-energy electron beam, the system achieves rapid X-ray energy switching without mechanical movement, enabling switching speeds on the order of nanoseconds or faster.
2Measurement precision
If multiple monochromatic meters are used to obtain different monochromatic hard X-rays, then measurement precision is improved, but device complexity and switching time increase
Solution Approach 1:
The system uses a single electron beam that serves multiple functions by colliding with different laser wavelengths to generate various X-ray energies. This universal approach allows one electron beam to replace multiple monochromatic meters, achieving different X-ray energies through laser wavelength selection rather than requiring separate measurement devices for each energy level.
3Adaptability or versatility
If physical device movement is used to switch X-ray wavelengths, then wavelength switching is achieved, but switching speed is limited and mechanical wear occurs
Solution Approach 1:
The system dynamically switches X-ray wavelengths by controlling the laser sources rather than moving physical components. The electron beam remains stationary while lasers of different wavelengths are activated sequentially, enabling rapid wavelength switching limited only by laser response time rather than mechanical movement constraints.
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 the successive generation of two or more types of monochromatic hard X-rays at short time intervals with high intensity and precision, suitable for angiography and two-color X-ray CT, improving image resolution and electron density distribution analysis.
Implementation Method 1
The hard X-ray 54 having a time width of 10 ns is generated by Compton scattering
Data Source
AI summary
A multi-color X-ray generator includes an electron beam generator 10 which accelerates an electron beam to generate a pulse electron beam 1 and which transmits the beam along a predetermined rectilinear orbit 2, a composite laser generator 20 which successively generates a plurality of pulse laser lights 3a, 3b having different wavelengths, and a laser light introduction device 30 which introduces the pulse laser lights along the rectilinear orbit 2 to be opposed to the pulse electron beam 1, so that the plurality of pulse laser lights 3a, 3b successively head-on collide with the pulse electron beam 1 along the rectilinear orbit 2 so as to generate two or more types of monochromatic hard X-rays 4 (4a, 4b).