RESUMO
The half-life of 55Fe was determined experimentally and compared with literature values. A solid 55Fe source was prepared by electrodeposition and repeatedly measured in an X-ray detector at a constant, low solid angle. In total, more than six hundred measurements were performed over a period of ten months, corresponding to one third of the half-life. The experimental method and the corresponding uncertainty budget are presented. The result of 1005.2+/-1.4 days is slightly higher than the current recommended values.
Assuntos
Radioisótopos de Ferro/análise , Radioisótopos de Ferro/química , Modelos Químicos , Radiometria/métodos , Algoritmos , Simulação por Computador , Guias como Assunto , Meia-Vida , Radioisótopos de Ferro/normas , Doses de Radiação , Radiometria/instrumentação , Padrões de Referência , Valores de ReferênciaRESUMO
Within the Decay Data Evaluation Project (DDEP) and the IAEA Coordinated Research Project no. F41029, the evaluation of the nuclear decay data of (52)Fe, a radionuclide of interest in nuclear medicine, was performed. The main nuclear decay data evaluated are: the half-life, decay energy, energies and probabilities of the electron capture and ß(+) transitions, internal conversion coefficients and gamma-ray energies and emission intensities. This new evaluation, made using the DDEP methodology and tools, was included in the DDEP database NUCLEIDE.