Estimation of radioactive activity by gamma spectroscopy
DOI:
https://doi.org/10.32685/2590-7468/invapnuclear.7.2023.667Palabras clave:
Espectroscopía gamma, cadena de decaimiento, actividad radiactiva, eficiencia absoluta
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Derechos de autor 2023 Servicio Geológico Colombiano
Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.
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Fuentes radiactivas de los isótopos de 22Na, 137Cs, 60Co, 133Ba y las cadenas de decaimiento de Th y U son analizadas por medio de espectroscopía gamma. El instrumento usado; un centelleador cilíndrico de NaI(Tl) de Mirion Technologies (Canberra) con dimensiones 2 × 2 se caracteriza mediante su calibración y eficiencia absoluta. Los máximos de energías en los espectros gamma obtenidos son identificados y relacionados con sus isótopos correspondientes y las interacciones radiación-materia de acuerdo con bases de datos de estructura nuclear y atómica. A partir de estos datos, se implementan métodos espectroscópicos para calcular las actividades radiactivas de cada fuente.
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