The whole body counting experience on the internal contamination of radionuclides at IPEN/CNEN-SP
Carregando...
Data
Data de publicação
2019
Autores IPEN
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
É parte de
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
Exportar
Resumo
The intake of radioactive material by workers can occur in the radiopharmaceuticals production,
during the
handling of radiopharmaceuticals in nuclear medicine and in bi ological and research laboratories. The members
of staff occupationally exposed to radionuclides are routinely monitored for the purpose of quantitative
assessment of internal exposure . Direct measurements of whole body and t hyroid contents provide an estimate
of the activity of these radionuclides in the potentially exposed workers. The whole body measurements of the
workers, trainees and visitors are routinely performed by the In Vivo Monitoring Laboratory (LMIV) of the
Ener gy and Nuclear Research Institute (IPEN/CNEN SP). The frequency of measurements is defined by the
Radioprotection Service (SRP) and the Dose Calculation Group of IPEN. For this purpose LMIV has two
counters, whole body. NaI(Tl) (8x4”), and thyroid one, NaI (Tl) (3x3”). The system was calibrated in energy and
efficiency, with calibration sources of Am 241, Co 60, Cs 137 and Eu 152 with gamma emissions between
59.54 and 1408.08 keV, positioned within Alderson Research Labs. anthropomorphic phantom. The backgro und
measures were obtained of worker’s spectrum that wasn’t exposed occupationally yet. The concepts adopted in
the HPS N13.30 Standard and proposed in ISO documents for standardization were used for activity
measurements. During the period January 2014 to December 2018, approximately 3500 measurements had been
carried in workers who develop tasks related to the production and research. The activities of the radionuclides
and the workers’ tasks relationship had been evaluated.
Como referenciar
CARDOSO, JOAQUIM C.S.; XAVIER, MARCOS. The whole body counting experience on the internal contamination of radionuclides at IPEN/CNEN-SP. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. Proceedings... Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 234-238. Disponível em: http://repositorio.ipen.br/handle/123456789/30349. Acesso em: 30 Dec 2025.
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.