Inventorying the radionuclides in spent cartridge filters from the primary circuit of a nuclear research reactor by the dose-to-activity method
Carregando...
Data
2020
Data de publicação:
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Radiation Physics and Chemistry
Exportar
Resumo
The high activity of spent cartridge filters from the cooling water polishing system of a nuclear research reactor
precludes, in routine work of a waste characterization program, the usual method of radiochemical analysis of
filter samples. For this waste, the dose-to-activity method, using a gamma spectrometer and a dose rate meter, is
an alternative for the determination of the activities of the gamma emitters with acceptable accuracy. The ratio
of photon peak-areas from different radionuclides, corrected by the detector energy-dependent efficiency, allowed
estimating the proportions between the activities of the different radionuclides present. Finally, the simulation
of the counting geometry, using the point-kernel method to estimate the air dose rate resulting from an
arbitrary concentration of those radionuclides and the comparison of the calculated with the measured air dose
rate have yielded the needed estimates of the activity concentrations. The aim of this paper is to report the
development of the method applied for the determination of the concentration of the gamma-emitters present in
cartridge filters from the IEA-R1 Nuclear Research Reactor.
Como referenciar
TESSARO, ANA P.G.; ARAUJO, LEANDRO G. de; VICENTE, ROBERTO. Inventorying the radionuclides in spent cartridge filters from the primary circuit of a nuclear research reactor by the dose-to-activity method. Radiation Physics and Chemistry, v. 171, p. 1-6, 2020. DOI: 10.1016/j.radphyschem.2020.108710. Disponível em: http://repositorio.ipen.br/handle/123456789/31091. Acesso em: 10 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.