Collimator Module Positioning via Notched Plate Member
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Solution Overview
Problem
The challenge lies in accurately positioning collimator modules within radiation detection devices, particularly as the size of detection assemblies and collimator assemblies increase, making it difficult to achieve high positioning accuracy efficiently.
Innovation Solution
The use of precision-manufactured plate members with notches to fit positioning pins of collimator modules, allowing for high accuracy positioning by attaching these plate members to rails, establishing a standard procedure for efficient and accurate assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the detection assembly and collimator assembly are made larger to increase detection capability, then the detection performance is improved, but the positioning accuracy of collimator modules deteriorates
Solution Approach 1:
The collimator assembly is divided into multiple collimator modules that can be independently positioned and assembled. Each module has positioning pins that fit into corresponding positioning holes in the plate members, enabling precise positioning of each segment while allowing the overall assembly to be large-scale.
Solution Approach 2:
Plate members with notches and positioning holes serve as intermediary components between the rails and collimator modules. These plate members provide reference positions and positioning features that enable accurate positioning of collimator modules without requiring direct precision machining on the large-scale assembly structure.
2Device complexity
If conventional positioning methods are used for large assemblies, then the device complexity is reduced, but the productivity of positioning collimator modules deteriorates
Solution Approach 1:
The plate members are prepared in advance with notches and positioning holes at precise reference positions. This preliminary preparation of positioning features allows for rapid assembly of collimator modules without time-consuming alignment operations during the main assembly process.
Solution Approach 2:
The positioning pins on collimator modules automatically find their corresponding positioning holes in the plate members through the notch guidance, enabling self-aligning and self-positioning without requiring complex external positioning equipment or skilled manual alignment.
Data Source
AI summary
A radiation detection device is provided. The radiation detection device includes a pair of rails spaced in a slice direction and extending parallel to a channel direction, and a plurality of collimator modules arranged along the channel direction on a radiation exit side of the pair of rails, wherein at least one of the pair of rails extending along the channel direction includes a plate member with a plurality of notches formed along the radiation exit side, and wherein the collimator modules each include a first pin protruding on a radiation incidence side and attached to the pair of rails with the first pin fitted in one of the notches of the plate member.