Measurement of Iodine-125 radioactive solid waste derived from sources production laboratory for brachytherapy
Carregando...
Data
2017
Data de publicação:
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Medical Physics
Exportar
Resumo
Purpose: This study aims to present a solid waste management plan for the
laboratory of radioactive sources production (LPFR), iodine-125 brachytherapy
seeds, located at the Energy and Nuclear Research Institute (IPEN). After
the implementation, it is expected to meet a demand of 8000 seeds per
month. Methods: Waste from the production of Iodine-125 sources is classified
as “Very Low Level Waste Disposal” (T1/2 ≤ 100 days) in the IAEA regulations.
Despite that, they have levels of activity above the limits established
in standard (CNEN 8.01) needing adequate management in order to guarantee
the safety of the installation, operators and environment. The solid waste
is generated in Glove box 1, were the fixation reaction (iodine-125 – core)
takes place. The wastes from this production are absorbent papers and filters
used in surface and air decontamination processes; glass vials, syringes and
needles, used in the fixation reaction. Measures of mass, volume and values
of activities generated over 5 years of production were performed for each
glove box by estimating different scenarios throughout production (supplier
switching, variation in activity by radioactive source, etc.). The concentration
of activity was also determined in order to meet the criteria established in the
standard for safe release of the waste. Results: The final volumes and activities
calculated indicated that the laboratory has enough space for temporary
storage until the release to the environment (thus not requiring treatment,
transport, and another place for management). The data collected proved that
a secure management system for radioactive waste within the facility is possible.
Conclusion: The management proposed by this work was able to safely
contemplate all stages of waste management. This data is indispensable for
the construction and licensing of the laboratory.
Como referenciar
SOUZA, D.B. de; ROSTELATO, M.C.M.; VICENTE, R.; ZEITUNI, C.; SOUZA, C.D. de; RODRIGUES, B.T.; MARQUES, J. de O.; CARVALHO, V.; BARBOSA, N. Measurement of Iodine-125 radioactive solid waste derived from sources production laboratory for brachytherapy. Medical Physics, v. 44, n. 6, p. 2974-2975, 2017. DOI: 10.1002/mp.12304. Disponível em: http://repositorio.ipen.br/handle/123456789/31133. Acesso em: 25 Apr 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.