neutron activation analysis

neutron-activation analysis. A method of identifying and analyzing physical evidence by measuring gamma rays emitted by a sample of material after that material has been bombarded with neutrons in a nuclear reactor. • This technique can be used, for example, to detect gunshot residue on the hand of someone who recently fired a gun. The analysis is usu. expensive to perform, but most courts allow the results into evidence. — Abbr. NAA.

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词条贡献者

资深译员Betty，毕业于亚洲一流的高级翻译学院，专注翻译各种与商业移民有关的法律文件。