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| Analys av nukleär sönderfall× | Neutronaktiveringsanalys× | |
|---|---|---|
| Ämnesområde | Kärnfysik | Kärnfysik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1900 | 1936 |
| Upphovsperson≠ | Ernest Rutherford, Frederick Soddy | George de Hevesy, Hilde Levi |
| Typ≠ | analytical process model | analytical measurement technique |
| Ursprungskälla≠ | Evans, R. D. (1955). The Atomic Nucleus. McGraw-Hill. link ↗ | Chadwick, J. (1932). Possible Existence of a Neutron. Nature, 129(3252), 312. DOI ↗ |
| Alias | decay kinetics, radioactive decay modeling, half-life analysis | NAA, activation analysis, trace element analysis |
| Närliggande | 5 | 5 |
| Sammanfattning≠ | 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. | 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. |
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