Condenser Lens Vacuum Bulkhead Laser Ion Source
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Solution Overview
Problem
The existing laser ion sources have complex structures due to the need for axial alignment and stain prevention mechanisms, which complicate the adjustment and maintenance of mirrors and lenses within the vacuum container, leading to inefficiencies in target irradiation performance and increased component complexity.
Innovation Solution
A laser ion source design where the condenser lens is integrated as a vacuum bulkhead, either inside or outside the vacuum container, eliminating the need for axial alignment and reducing the number of components, with a simplified structure that prevents lens staining and reduces energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mirrors and lenses are arranged inside the vacuum container for laser beam injection, then the laser beam can be condensed and focused onto the target, but the structure becomes complex requiring axial alignment mechanisms and stain prevention systems
Solution Approach 1:
The condenser lens is extracted from inside the vacuum container and positioned outside, eliminating the need for complex axial alignment mechanisms and stain prevention systems while maintaining laser beam focusing capability onto the target through the vacuum window
Solution Approach 2:
The vacuum window serves multiple functions: it maintains vacuum isolation between the vacuum container and external environment, and simultaneously acts as a transmission medium for the laser beam to pass through and reach the target, eliminating the need for separate laser injection windows
2Ease of operation
If axial alignment mechanisms are provided for mirrors and lenses in the vacuum container, then the relative axial positions can be adjusted, but the structure becomes more complex with additional wirings and adjustment mechanisms
Solution Approach 1:
The condenser lens is extracted from the vacuum container to the external environment, eliminating the need for axial alignment mechanisms, motors, and wirings that would be required to adjust lens position inside the vacuum container
3Manufacturing precision
If mirrors and lenses are placed inside the plasma generation section, then they can focus the laser beam onto the target, but they become stained by laser ablation particles and require replacement and stain prevention mechanisms
Solution Approach 1:
The condenser lens is extracted from the plasma generation section and positioned outside the vacuum container, where it is not exposed to laser ablation particles, thereby preventing staining and eliminating the need for stain prevention mechanisms while maintaining laser beam focusing capability through the vacuum window
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 simplifies the structure, reduces the need for complex alignment and maintenance, and enhances the target irradiation performance by eliminating the need for stain prevention mechanisms, while maintaining the vacuum integrity and focusing capabilities of the laser beam.
Implementation Method 1
irradiate a target with a condensed laser beam to evaporate the element of the target and ionize it to generate plasma
Implementation Method 2
evaporate the element of the target and ionize it to generate plasma
Implementation Method 3
The laser beam is introduced into the vacuum container through a vacuum window of the vacuum container
Data Source
AI summary
One embodiment of a particle accelerator includes: a vacuum container with its inside evacuated to produce vacuum, the vacuum container being formed with a laser beam entrance window for allowing a laser beam to enter; a target arranged in the vacuum container so as to be irradiated with a laser beam to generate ions; and a condenser lens for focusing the laser beam onto the target. The condenser lens is arranged at the laser beam entrance window of the vacuum container, and takes a role of a vacuum bulkhead.