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| Neutronaktiveringsanalys× | Dosimetrimätning× | |
|---|---|---|
| Ämnesområde | Kärnfysik | Kärnfysik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1936 | 1896 |
| Upphovsperson≠ | George de Hevesy, Hilde Levi | Wilhelm Röntgen, Henri Becquerel |
| Typ≠ | analytical measurement technique | experimental measurement methodology |
| Ursprungskälla≠ | Chadwick, J. (1932). Possible Existence of a Neutron. Nature, 129(3252), 312. DOI ↗ | Knoll, G. F. (2010). Radiation Detection and Measurement (4th ed.). John Wiley & Sons. link ↗ |
| Alias | NAA, activation analysis, trace element analysis | dose measurement, radiation monitoring, exposure quantification |
| Närliggande | 5 | 5 |
| Sammanfattning≠ | 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. | Dosimetry measurement is the experimental quantification of radiation dose and exposure, originating from Röntgen and Becquerel's 1890s discoveries. It employs specialized detectors (ion chambers, TLD, Geiger counters) to measure photon and particle energy deposition in biological tissue or materials, providing direct evidence of exposure for worker protection, patient dose verification, and environmental monitoring. |
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