Plasma-shell Radiation Detector Using Segmented Gas Arrays
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Solution Overview
Problem
Current radiation detection technologies, such as plastic scintillators and Geiger-Muller tubes, face issues with durability, aging, attenuation, afterglow, and limited size due to their organic materials and structural limitations, while gas wire detectors are impractical for large areas.
Innovation Solution
A gas discharge plasma display panel (PDP) using Plasma-shells, which are hollow, inorganic, and filled with ionizable gases, providing a flexible, durable, and scalable solution for radiation detection by encapsulating gas within tiny, geometrically varied shells that can be arranged in large arrays for portal applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If plastic scintillators are used for radiation detection, then the detector can be made large and easy to fabricate, but the detector deteriorates under high energy, moisture, and temperature
Solution Approach 1:
The invention changes the material parameter from organic plastic scintillator to inorganic Plasma-shell material, which fundamentally alters the chemical stability and environmental resistance while maintaining the ability to be manufactured in large areas through plasma display technology
Solution Approach 2:
The detector uses a composite structure combining inorganic Plasma-shell material with gas filling (such as xenon or krypton), creating a material system that exhibits both the structural stability of inorganic compounds and the radiation detection properties of ionizable gases
2Reliability
If Geiger-Muller tubes with mica windows are used, then radiation detection is achieved, but the mica windows are subject to chipping or fracture
Solution Approach 1:
The invention changes the window material parameter from brittle mica to flexible Plasma-shell material that can be made from elastomeric or plastic substances, fundamentally improving mechanical strength and fracture resistance while maintaining radiation detection functionality
Solution Approach 2:
The Plasma-shell detector employs flexible shell structures that can be made from elastomeric or plastic materials, replacing the rigid and fragile mica windows of traditional Geiger-Muller tubes with compliant, fracture-resistant alternatives
3Measurement precision
If gas wire detectors are used for radiation detection, then detection sensitivity is achieved, but they are impractical for large areas
Solution Approach 1:
The invention segments the detector into multiple independent Plasma-shell elements arranged in arrays, allowing the detection function to be distributed across large areas while each individual element maintains the sensitivity characteristics of gas-filled detectors
Solution Approach 2:
The invention transitions from one-dimensional wire detectors to two-dimensional or three-dimensional arrays of Plasma-shells, enabling area expansion while maintaining detection sensitivity through the distributed nature of the segmented detector elements
4Reliability
If organic scintillator materials are used, then radiation detection is achieved, but they are not rugged and deteriorate over time
Solution Approach 1:
The invention changes the fundamental chemical composition parameter from organic to inorganic material, which inherently provides greater stability and resistance to degradation from radiation, moisture, and temperature, thereby extending service life while maintaining detection functionality
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
The Plasma-shell detector offers enhanced durability, flexibility, and scalability, allowing for efficient discrimination between radiation types and energy levels, with improved sensitivity and resistance to environmental factors, making it suitable for portal and handheld applications.
Implementation Method 1
The Plasma-shell detector comprises multiple Plasma-shell sites individually and collectively detecting radiation
Implementation Method 2
Arrays of Plasma-shells may be stacked between layers of increasingly dense material to discriminate between intensity of radiation
Data Source
AI summary
A radiation detection device comprising a plasma display panel (PDP) with a multiplicity of radiation detection pixels, each radiation detection pixel being defined by a hollow gas filled Plasma-shell having one or more flat sides. Arrays of Plasma-shells are positioned on a suitable base such as a substrate and used to inspect and detect radiation from a selected object. Each Plasma-shell may be of any suitable geometric configuration, including a Plasma-disc and a Plasma-dome. Luminescent material may be positioned near or on each Plasma-shell to provide or enhance light output. A flexible base substrate may be used to wrap a layer or blanket of radiation detection Plasma-shells about the selected object.