Electron Multiplier Body Channel Fabrication via Plate Lamination
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Solution Overview
Problem
The existing method of manufacturing electron multiplier bodies with wavy passage dynode elements faces challenges in improving processability and increasing manufacturing efficiency, leading to higher costs and reduced workability.
Innovation Solution
A method involving the lamination of plate-like members to form channels, followed by integration and cutting to create a main body portion, with the option to form resistive and secondary electron multiplication layers using atomic layer deposition, and the use of conductive materials for increased versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wavy groove portions are formed in two blocks and combined to form a passage, then an electron multiplier body with a channel can be manufactured, but the processability of the channel is difficult to improve
Solution Approach 1:
The passage formation process is segmented into two independent stages: first forming hole portions in separate plate-like members, then laminating them to create the complete passage. This segmentation allows each stage to be optimized independently, improving processability while maintaining the wavy channel structure.
Solution Approach 2:
Hole portions are formed preliminarily in the plate-like members before lamination. This preliminary action enables the channel structure to be prepared in advance with high precision, and the actual passage formation occurs automatically during the lamination process, significantly improving ease of manufacture.
2Ease of manufacture
If traditional methods are used to form passages in electron multiplier bodies, then channels can be created, but manufacturing cost increases and workability decreases
Solution Approach 1:
Multiple functions are merged into the lamination process: it simultaneously forms the passage structure, positions the plate-like members relative to each other, and creates the final channel geometry. This consolidation eliminates separate machining operations, improving workability and reducing manufacturing cost.
Solution Approach 2:
The lamination process itself generates the passage structure without requiring additional forming operations. The hole portions in the plate-like members automatically align and connect during lamination to form the complete wavy channel, making the system self-sufficient and reducing overall manufacturing complexity.
3Ease of manufacture
If plate-like members are laminated to form channels, then processability improves, but integration and cutting steps are required
Solution Approach 1:
The lamination step serves multiple functions simultaneously: it forms the passage structure, integrates the plate-like members into a single body, and establishes the spatial relationships between components. This multi-functionality compensates for the added integration and cutting steps by consolidating several operations into one.
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 approach enhances processability, reduces manufacturing costs, and improves workability by simplifying the formation of channels and allowing for accurate width control, while enabling the use of various materials and multiple channel configurations.
Implementation Method 1
the resistive layer and the secondary electron multiplication layer may formed using an atomic layer deposition (ALD) method
Data Source
AI summary
A method of manufacturing an electron multiplier body, the method includes a step of preparing a first plate-like member having a surface and a back surface and a pair of second plate-like members, a step of forming, in the first plate-like member, a hole portion reaching from the front surface to the back surface, a step of constituting a laminated body by laminating the first and second plate-like members on each other so that the first plate-like member is interposed between the pair of second plate-like members to form a channel defined by the hole portion in the laminated body, a step of integrating the laminated body, a step of constituting a main body portion by cutting the integrated laminated body so that the channel is open, and a step of forming a resistive layer and a secondary electron multiplication layer on an inner surface of the channel.