手法を比較

	放射性崩壊分析	放射性廃棄物分類
分野	原子核物理学	原子核物理学
系統	Process / pipeline	Process / pipeline
提唱年	1900	1960
提唱者	Ernest Rutherford, Frederick Soddy	International Atomic Energy Agency (IAEA)
種類	analytical process model	regulatory classification framework
原典	Evans, R. D. (1955). The Atomic Nucleus. McGraw-Hill.	International Atomic Energy Agency (2009). Classification of Radioactive Waste. IAEA Safety Standards Series No. GSG-1.
別名	decay kinetics, radioactive decay modeling, half-life analysis	waste categorization, hazard stratification, material disposition
関連	5	5
概要	Nuclear decay analysis is the systematic study of radioactive transformation processes, originating from Rutherford and Soddy's work in the early 1900s. It quantifies the rate and modes of nuclear disintegration using decay constants, half-lives, and branching ratios to predict activity evolution, date samples via radiometric methods, and assess the long-term hazard from radioactive materials.	Radioactive waste classification is a systematic framework for categorizing radioactive materials based on activity, heat generation, and long-term hazard potential, developed by the IAEA. It stratifies waste into classes (exempt, very low-level, low-level, intermediate-level, high-level) to determine appropriate management pathways—from near-surface disposal to deep geological repositories—ensuring environmental protection and regulatory compliance.