Variable Segment Detector Array for Sample Geometry Adaptation
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Solution Overview
Problem
Current radiation detectors with fixed sizes are inefficient for measuring radiations from samples of varying sizes, as they do not optimize performance based on the sample's shape and size, leading to suboptimal detection limits and analysis times.
Innovation Solution
A variable segment detector array that allows selective use of detector segments based on the sample's size and geometry, improving signal-to-noise ratio and enabling discrimination between different types of radiation by utilizing the performance characteristics of each segment independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single detector with fixed size is used, then the device complexity is reduced, but the adaptability to different sample geometries deteriorates
Solution Approach 1:
The detector is divided into multiple independently controllable segments or zones. Each segment can be selectively activated or deactivated based on the sample geometry being measured, allowing the detector to adapt to different sample sizes and shapes without requiring multiple complete detectors.
Solution Approach 2:
The detector configuration is made dynamic by enabling selective activation of different segments. The system can change its effective detection area and geometry in real-time based on the sample being measured, transitioning between different operational modes without physical reconfiguration.
2Area of stationary object
If the detector size is increased to cover larger samples, then the coverage area is improved, but the signal-to-noise ratio for small samples deteriorates
Solution Approach 1:
By segmenting the detector into multiple zones, the system can isolate and activate only the segments necessary for the current sample size. This prevents noise from inactive segments while maintaining adequate detection area, thereby preserving signal-to-noise ratio across different sample sizes.
Solution Approach 2:
Different segments of the detector can be optimized for different detection scenarios. The system applies local quality by activating specific segments with appropriate characteristics for the current measurement task, rather than using a uniform detector response across the entire surface.
3Adaptability or versatility
If multiple detector segments are used, then the adaptability to sample size is improved, but the device complexity increases
Solution Approach 1:
A single detector array with multiple segments serves multiple functions by selectively activating different segments for different sample sizes and geometries. This universal detector replaces the need for multiple specialized detectors, reducing overall system complexity despite the increased segment count.
Solution Approach 2:
The detector system includes automated control logic that selects which segments to activate based on the sample characteristics. This self-service capability reduces the need for manual configuration and simplifies operation, offsetting the increased structural complexity.
4Area of stationary object
If all detector segments are activated, then the total detection area is maximized, but the background noise increases
Solution Approach 1:
The system extracts and activates only the necessary detection segments required for the current sample, removing or deactivating the remaining segments that would contribute unnecessary background noise. This selective extraction maintains adequate detection area while minimizing noise.
Solution Approach 2:
Rather than activating all detector segments (excessive action), the system activates only the partial set of segments necessary for the current measurement. This partial action approach prevents noise from unnecessary segments while ensuring sufficient detection coverage.
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 detection efficiency by using only the most suitable detector segments for specific samples, reducing background noise and achieving lower detection limits and shorter analysis times, while also providing a built-in redundancy for fault tolerance.
Implementation Method 1
a semiconductor radiation sensing surface comprising N radiation sensing surface segments of equal size, each radiation sensing surface segment being connected to a respective sensor circuit that outputs one of N output analog signals in response to radiation of a first type impinging on the radiation sensing surface segment connected to the sensor circuit
Data Source
AI summary
A radiation detector comprising a semiconductor radiation sensing surface having N radiation sensing surface segments of equal size, each radiation sensing surface segment being connected to a respective sensor circuit that outputs one of N output analog signals in response to radiation of a first type impinging on the radiation sensing surface segment connected to the sensor circuit; and a signal processor arrangement having N signal processing circuits that each receive and process one of said N first analog signals, where N is an integer larger than 1.