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134Cs emission probabilities determination by gamma spectrometry

de Almeida, M C M ; Poledna, R ; Delgado, J U ; Silva, R L ; Araujo, M T F ; da Silva, C J

Journal of physics. Conference series, 2018-03, Vol.975 (1) [Periódico revisado por pares]

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Título:
134Cs emission probabilities determination by gamma spectrometry
Autor: de Almeida, M C M ; Poledna, R ; Delgado, J U ; Silva, R L ; Araujo, M T F ; da Silva, C J
Assuntos: Cesium 134 ; Cesium isotopes ; Emitters ; Gamma emission ; Germanium ; Ionizing radiation ; Radioisotopes ; Standardization ; Uncertainty
É parte de: Journal of physics. Conference series, 2018-03, Vol.975 (1)
Descrição: The National Laboratory for Ionizing Radiation Metrology (LNMRI/IRD/CNEN) of Rio de Janeiro performed primary and secondary standardization of different radionuclides reaching satisfactory uncertainties. A solution of 134Cs radionuclide was purchased from commercial supplier to emission probabilities determination of some of its energies. 134Cs is a beta gamma emitter with 754 days of half-life. This radionuclide is used as standard in environmental, water and food control. It is also important to germanium detector calibration. The gamma emission probabilities (Pγ) were determined mainly for some energies of the 134Cs by efficiency curve method and the Pγ absolute uncertainties obtained were below 1% (k=1).
Editor: Bristol: IOP Publishing
Idioma: Inglês

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