Voxel Block Phantom for Custom Radiation Measurement
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Solution Overview
Problem
Conventional radiation measurement phantoms are limited in their ability to accurately measure radiation doses in complex scenarios with non-uniform media and varying densities, requiring multiple specialized phantoms and incurring high costs.
Innovation Solution
A voxel type block phantom that allows customization by combining solid blocks with different media and densities in a three-dimensional configuration, featuring embedded radiation measurement units, insertion grooves, and concave-convex portions for layer assembly, enabling precise and versatile radiation measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional single-purpose phantoms are used for each measurement target, then measurement precision for specific targets is improved, but device complexity and cost increase due to needing multiple specialized phantoms
Solution Approach 1:
The phantom system uses standardized solid blocks with uniform dimensions that can be combined in various configurations to create phantoms for different measurement targets. Each solid block contains an embedded radiation measurement unit, allowing the same basic building blocks to serve multiple measurement purposes through different arrangements, eliminating the need for multiple specialized phantom types.
Solution Approach 2:
The phantom is divided into multiple discrete solid blocks that can be independently selected and combined. Each solid block represents a modular unit with consistent dimensions and embedded measurement capability, allowing flexible assembly to match different anatomical structures and measurement requirements without requiring complete redesign for each application.
2Adaptability or versatility
If specially produced phantoms are used to implement non-uniformity media, then measurement adaptability for complex media is improved, but cost increases due to custom fabrication requirements
Solution Approach 1:
The system achieves non-uniformity in radiation measurement by selectively arranging solid blocks with different media types and densities in specific spatial configurations. Rather than requiring custom fabrication for each non-uniform scenario, the solution uses standardized blocks with varying intrinsic properties that can be locally arranged to match different anatomical and tissue density variations.
Solution Approach 2:
The phantom system combines multiple solid blocks with different media compositions and density characteristics to create composite structures that simulate complex biological tissues and non-uniform media. This allows representation of diverse tissue types (bone, soft tissue, air cavities) using standardized modular units with predetermined material properties.
3Adaptability or versatility
If conventional phantoms are used for various measurement targets, then measurement coverage is improved, but measurement precision decreases due to inability to accurately represent different media and densities
Solution Approach 1:
Each solid block is designed with specific media type and density characteristics that match particular tissue types or material properties. By selectively choosing and arranging blocks with appropriate local properties, the system accurately represents the specific media and density variations of different measurement targets while maintaining modular simplicity.
Data Source
AI summary
The present invention relates to a voxel-type block phantom for a multifunctional radiation measurement apparatus. A phantom, for adjusting an amount of radiation, has solid pixel blocks, having a radiation measuring device equipped therein and different media and densities from one another, assembled on top of one another so as to be assembled into a 3-dimensional voxel, wherein the phantom is formed by placing a solid block which is appropriate for a density that corresponds to each pixel of the 3-dimensional voxel. An inspector can personally and instantly customize a phantom that is appropriate for a subject to be measured and thus can obtain an accurate measurement value.