Radiation Imaging Pixel Array Segmentation for Signal Reading Speed
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Solution Overview
Problem
Existing radiation imaging apparatuses with pixel arrays suffer from deteriorated reading rates for detecting radiation amounts due to shared reading lines across multiple regions, leading to inefficiencies in signal detection.
Innovation Solution
The apparatus is configured with multiple groups of pixels arranged in a row and column direction, where each group includes detection sections connected to different detection signal lines, allowing for simultaneous reading of signals from multiple detection sections, thereby improving the speed of radiation amount detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If detection pixels are arranged in multiple regions sharing reading lines, then the imaging region can be expanded, but the reading rate for detecting radiation amount deteriorates
Solution Approach 1:
The detection pixel array is divided into multiple independent regions (first groups and second groups), where each region has its own dedicated reading lines. This segmentation allows simultaneous reading from multiple regions without signal interference, resolving the contradiction between expanded imaging area and maintained reading rate.
Solution Approach 2:
The patent introduces a group configuration dimension beyond the simple row-column pixel arrangement. By organizing detection pixels into distinct first groups and second groups with different reading line assignments, the system adds a hierarchical dimension to signal routing, enabling parallel reading operations across expanded imaging regions.
2Device complexity
If reading lines are shared among multiple detection pixel regions, then device complexity is reduced, but signal reading efficiency decreases
Solution Approach 1:
The reading line system is segmented into multiple independent sets, with each set dedicated to specific detection pixel groups. This segmentation eliminates signal interference between regions while maintaining manageable device complexity through systematic organization of reading lines.
Solution Approach 2:
Each reading line is designed to serve multiple detection pixel groups across different regions, allowing the same reading line to be universally applied to multiple groups without sharing simultaneously active signals. This multi-functionality approach balances complexity reduction with reading efficiency.
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 configuration enables high-speed detection of radiation amounts by allowing signals from different detection sections to be read simultaneously, enhancing the efficiency of radiation imaging operations.
Implementation Method 1
a conversion element which converts radiation into charge
Data Source
AI summary
An apparatus includes a plurality of first groups having same configurations and arranged in a row direction and a column direction, each of the first groups including a plurality of pixels for obtaining a radiation image and at least one detection section for detecting an amount of incident radiation, and a plurality of detection signal lines connected to the plurality of detection sections. Two of the plurality of first groups which are arranged in the column direction are shifted from each other in the row direction, and the detection sections included in the two groups are connected to different detection signal lines in the plurality of detection signal lines.