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	放射性崩壊分析	原子炉キネティクス
分野	原子核物理学	原子核物理学
系統	Process / pipeline	Process / pipeline
提唱年	1900	1942
提唱者	Ernest Rutherford, Frederick Soddy	Enrico Fermi, George Westinghouse
種類	analytical process model	dynamic systems analysis
原典	Evans, R. D. (1955). The Atomic Nucleus. McGraw-Hill.	Lamarsh, J. R. (1983). Introduction to Nuclear Engineering (2nd ed.). Addison-Wesley.
別名	decay kinetics, radioactive decay modeling, half-life analysis	neutron kinetics, power transient modeling, reactor control analysis
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.	Reactor kinetics is the study of neutron population dynamics in a reactor core, originating from Fermi's first controlled chain reaction in 1942. It models power changes in response to control rod movements, temperature feedback, and accidental transients using coupled differential equations accounting for prompt and delayed neutrons, to ensure safe operation, predict transient behavior, and design control systems.