Aviation Radiation Dose Analysis System Using Real-Time Atmospheric Conversion
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Solution Overview
Problem
Current aviation radiation dose analysis models, such as CARI-6/6M and NAIRAS, fail to accurately reflect solar proton events and do not provide open-source code and data, limiting their effectiveness in real-time cosmic radiation dose mapping and route dose estimation.
Innovation Solution
An analysis system that generates a global cosmic radiation dose map in real-time using sunspot number data and proton flux from GOES, calculates effective and cumulative radiation doses based on pre-written maps, and estimates radiation route doses by integrating proton spectrum generation, global radiation dose mapping, and atmospheric conversion using a database with pre-calculated data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional models (CARI-6/6M, NAIRAS) are used for aviation radiation dose analysis, then existing analysis capability is maintained, but accuracy in reflecting solar proton events is insufficient and source code/data are not accessible
Solution Approach 1:
The system segments the radiation dose analysis into distinct functional modules: proton spectrum generation (separating galactic cosmic rays and solar proton events), global radiation dose map production, real-time atmospheric condition conversion, and route dose calculation. This modular architecture improves both accuracy for specific events and overall system adaptability
Solution Approach 2:
The system performs preliminary calculations of proton spectra and global radiation dose maps in advance, storing them in databases. When solar proton events occur, pre-computed response matrices and spectral data enable rapid, accurate dose calculations without real-time computational delays, improving both accuracy and accessibility
2Reliability
If real-time production of global cosmic radiation dose maps is implemented, then up-to-date radiation information is provided, but computational complexity and data processing requirements increase
Solution Approach 1:
The system pre-computes and stores proton spectra, global radiation dose maps, and atmospheric response matrices in databases before real-time operation. During real-time execution, only atmospheric condition updates and route-specific calculations are performed, maintaining reliability while managing complexity through advance preparation
Solution Approach 2:
The system introduces an atmospheric conversion module that acts as an intermediary between the pre-computed standard atmosphere radiation maps and actual real-time atmospheric conditions. This module adjusts radiation doses based on current atmospheric parameters without requiring complete real-time re-computation of global maps
3Measurement precision
If comprehensive proton spectrum generation and global mapping are performed, then accurate radiation doses are calculated, but data storage and processing requirements increase
Solution Approach 1:
The system segments comprehensive radiation data into organized databases by geographic region, altitude, and atmospheric conditions. Only the specific data subsets relevant to each flight route are retrieved and processed, maintaining calculation accuracy while reducing actual data processing volume through selective data access
Data Source
AI summary
An analysis system for an aviation radiation dose includes: a proton spectrum generator which generates a galactic cosmic ray incident on the Earth's atmosphere and a proton spectrum corresponding to a solar proton event; a global radiation dose map producer which generates-particle transport and produces a radiation dose map; a global radiation dose map converter which converts the radiation dose map based on a standard atmosphere into a radiation dose map corresponding to current atmosphere conditions in real time; and a database in which data necessary for operations of the proton spectrum generator, the global radiation dose map producer and the global radiation dose map converter is previously calculated and stored, thereby having an effect on estimating any radiation route dose if information about an arbitrary path and time is given.