手法を比較

	中性子放射化分析	放射線線量評価
分野	原子核物理学	原子核物理学
系統	Process / pipeline	Process / pipeline
提唱年	1936	1928
提唱者	George de Hevesy, Hilde Levi	International Commission on Radiological Protection (ICRP)
種類	analytical measurement technique	computational health assessment pipeline
原典	Chadwick, J. (1932). Possible Existence of a Neutron. Nature, 129(3252), 312.	International Commission on Radiological Protection (2007). The 2007 Recommendations of the ICRP. Publication 103. Annals of the ICRP, 37(2–4).
別名	NAA, activation analysis, trace element analysis	dose calculation, exposure assessment, radiation hazard evaluation
関連	5	5
概要	Neutron activation analysis (NAA) is an analytical technique for determining elemental composition by bombarding samples with neutrons to produce radioactive isotopes, invented by de Hevesy and Levi in 1936. By measuring decay gamma rays from irradiated samples, NAA quantifies trace and major elements with high sensitivity, specificity, and accuracy without requiring destructive dissolution or complex sample preparation.	Radiation dose assessment is a systematic evaluation of human exposure to ionizing radiation from external or internal sources, formalized by the International Commission on Radiological Protection (ICRP) in the late 20th century. It combines radiation transport calculations with biological effect models to quantify absorbed dose, equivalent dose, and effective dose for worker safety and public health protection.