Dosis debido a la incorporación por ingestión de emisores beta puros
Doses due to incorporation by ingestion of beta emitters
DOI:
https://doi.org/10.15446/rev.fac.cienc.v5n1.56085Keywords:
Dosimetría interna, fracciones de absorción específicas, simulador computacional (es)Internal dosimetry, specific absorbed fraction, computational phantoms (en)
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El cálculo de dosis debido a la incorporación de radionúclidos se realiza en función de los coeficientes de dosis equivalente comprometida h(50) y dosis efectiva comprometida e(50). En este trabajo se calculan estos coeficientes de dosis para la ingestión única de 3H, 14C, 32P, 35S utilizando los valores de las fracciones de absorción específicas (SAF) del phantom computacional masculino de referencia de la ICRP(International Commission on Radiological Protection). Se usó además el modelo del tracto alimentario humano, HATM, para la determinación del número total de desintegraciones (Us) y la metodología de cálculo de las nuevas recomendaciones del ICRP dadas en la publicación 103. En general se encontró que los coeficientes de dosis equivalente comprometida para la mayoría de órganos presentan relativamente pocas diferencias, con excepción de algunos órganos como las paredes del estómago, el colon y la vejiga, además se encontró que existen diferencias significativas en las dosis de la medula ósea (RBM) y la superficie ósea (BS) para el caso particular del 32P.
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