Dynamic Radiation Dose Adjustment for Body-Dimensional Imaging
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Solution Overview
Problem
Current imaging techniques using ionizing radiation for detecting concealed contraband in human or animal bodies face challenges due to variable radiation absorption based on body density, leading to suboptimal image quality and potential health risks from excessive radiation exposure.
Innovation Solution
A scanning system that adjusts the ionizing radiation dose based on the body's dimensions, using non-ionizing radiation and high-frequency acoustic signals to determine properties like height and weight, ensuring optimal image quality while minimizing radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed high radiation dose is used for all body types, then image quality is maintained, but excessive radiation exposure and health risks occur
Solution Approach 1:
The radiation dose is made dynamic and adjustable based on measured body properties. The system automatically adapts the radiation dose to match the specific body dimensions and density of each subject, transitioning from a fixed high dose to a customized optimized dose that maintains image quality while minimizing radiation exposure.
Solution Approach 2:
The system changes the radiation dose parameter based on measured body properties such as height, weight, and body mass index. By adjusting the radiation dose parameter according to these physical parameters, the system optimizes the balance between image quality and radiation safety for different body types.
2Object-affected harmful factors
If a fixed low radiation dose is used for all body types, then radiation exposure is minimized, but image quality becomes suboptimal for dense or larger bodies
Solution Approach 1:
The radiation dose is dynamically adjusted based on real-time measurements of body properties. For subjects with higher density or larger body mass, the system automatically increases the radiation dose from the baseline low level to ensure adequate penetration and image quality, while still maintaining lower doses for smaller or less dense subjects.
Solution Approach 2:
The radiation dose parameter is changed according to measured body characteristics. The system uses body properties such as height, weight, and BMI to determine the appropriate radiation dose level, allowing the dose to scale with body size and density requirements.
3Reliability
If radiation dose is increased to penetrate dense bodies, then image quality improves, but health risks from excessive radiation increase
Solution Approach 1:
The system performs preliminary measurements of body properties (height, weight, BMI) before applying radiation. This advance knowledge allows the system to pre-calculate and set the appropriate radiation dose level, ensuring sufficient penetration for dense bodies without exceeding safe radiation limits, thereby preventing excessive exposure before it occurs.
Solution Approach 2:
The system uses feedback from body property measurements to automatically adjust the radiation dose. The measured body characteristics provide feedback that drives the dose selection algorithm, creating a closed-loop system that optimizes radiation delivery based on actual subject properties rather than using fixed predetermined doses.
4Object-affected harmful factors
If radiation dose is decreased to reduce health risks, then safety improves, but detection capability for concealed objects deteriorates
Solution Approach 1:
The radiation dose is dynamically optimized for each subject based on their body properties. The system adjusts the dose downward from maximum levels for smaller or less dense subjects, reducing radiation exposure while maintaining adequate detection capability. For larger or denser subjects, the dose is increased only to the extent necessary to maintain detection capability, avoiding unnecessary overexposure.
Solution Approach 2:
The radiation dose parameter is changed based on body property measurements to optimize the detection capability to radiation exposure ratio. The system calculates the minimum necessary dose for effective detection given the subject's body characteristics, achieving the lowest possible radiation exposure that still maintains adequate detection capability.
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 system provides consistent and optimal image quality by adjusting the radiation dose according to individual body dimensions, reducing the risk of excessive radiation exposure and improving the detection of concealed objects.
Implementation Method 1
use imaging techniques based on ionizing radiation, such as transmission X-ray
Implementation Method 2
using non-ionizing radiation and high-frequency acoustic signals to determine properties like height and weight
Implementation Method 3
using non-ionizing radiation and high-frequency acoustic signals to determine properties like height and weight
Data Source
AI summary
In one embodiment, there is provided a system for inspection of a human or animal body, comprising: a radiation provider configured to provide ionizing radiation having a radiation dose to the body, for inspection of the body by transmission; a measurement device configured to measure other than the ionizing radiation to determine at least one property associated with a dimension of the body to inspect; and a controller configured to cause the radiation dose provided to the body by the radiation provider to be controlled based on the at least one property determined by the measurement device.