Portable Radiation Detector System Using Segmented Absorption Layers
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Solution Overview
Problem
Current radiation detectors lack efficient and portable solutions for accurately measuring radiation exposure in various environments, particularly in scenarios where compact and user-friendly devices are required.
Innovation Solution
A portable radiation detection apparatus featuring a first radiation absorption layer with a semiconductor material and an electronic system that processes electrical signals, including voltage comparators, a counter, and a controller, allowing for time-delayed activation and measurement of radiation photon energies, and communication interfaces for data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional radiation detectors are used, then radiation detection capability is achieved, but device portability and compactness are compromised
Solution Approach 1:
The detector is divided into separate functional layers: a first radiation absorption layer for photon detection and an electronic system layer for signal processing. This segmentation allows each layer to be optimized independently, enabling portable form factors while maintaining detection accuracy through specialized material selection and circuit design.
Solution Approach 2:
The patent transitions from bulk three-dimensional detector structures to a layered two-dimensional configuration. The radiation absorption layer and electronic system are positioned in different spatial planes, reducing overall device volume and enabling portable applications while preserving measurement capabilities through optimized layer thicknesses and material properties.
2Volume of moving object
If the electronic system is stacked with the radiation absorption layer, then device compactness is improved, but signal processing reliability deteriorates due to interference
Solution Approach 1:
The detector structure separates the radiation absorption layer and electronic system into distinct functional zones. This spatial segmentation prevents electrical and electromagnetic interference between components while maintaining a compact overall form factor through optimized layer positioning and spacing.
Solution Approach 2:
An intermediate structure or spacing layer is introduced between the radiation absorption layer and electronic system. This intermediary element acts as an electrical isolate and mechanical support, preventing signal interference while enabling compact integration of the two functional layers.
3Device complexity
If simple voltage threshold detection is used, then device complexity is reduced, but measurement precision of radiation energy is insufficient
Solution Approach 1:
The electronic system performs preliminary signal conditioning and amplification before threshold comparison. This preliminary action prepares the signal for accurate threshold detection, enabling precise radiation energy measurement while keeping the overall system relatively simple through staged processing.
Solution Approach 2:
The detection system uses periodic sampling and time-delayed activation of the second voltage comparator. This periodic action allows the system to stabilize signals between measurements, improving energy measurement precision without requiring continuously complex electronics.
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
Enables accurate and portable radiation detection, providing real-time data on radiation exposure and energy distribution, with the ability to transmit information and integrate GPS location recording, suitable for diverse applications from personal wearables to environmental monitoring.
Implementation Method 1
When the detector is exposed to X-rays or other radiation sources, the gas is ionized. The electrons generated by the ionization, are attracted to the positive charged electrodes and an electric current pulse is therefore detected and counted.
Implementation Method 2
an incoming radiation photon ionizes a large number of detector atoms with the amount of charge carriers produced being proportional to the energy of the incoming radiation photon
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
An apparatus for detecting radiation, comprising: a first radiation absorption layer (110) configured to generate first electrical signals from a photon of the radiation absorbed by the first radiation absorption layer (110), wherein the first radiation absorption layer (110) comprises a first electrode; an electronic system (120、121) configured to process the first electrical signals; a counter (320) configured to register a number of photons absorbed by the radiation absorption layer; a controller (310); the controller (310) is configured to cause the number registered by the counter (320) to increase by one; a power supply (401); and a communication interface (410) configured for the electronic system (120、121) to communicate with outside circuitry.