sbbn reprolam ird
TRANSCRIPT
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SBBN REPROLAM IRDWORKSHOP
RADIOPROTEÇÃO E BIOSSEGURANÇA EM
LABORATÓRIOS DE PESQUISAS26 de junho de 2015
Rio de Janeiro (RJ) - Brasil
Riscos de incorporação de radionuclídeos em operações com
aceleradores de partículas e métodos de controle
Eng. João Carlos Pereira da Silva
CNEN/Instituto de Engenharia Nuclear
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Radiofármacos
M123IBG
(metaiodobenzilguanidina)
Na123I
(iodeto de sódio)
18FDG
(fluordexoglicose)
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APLICAÇÕES
MIBG
(diagnóstico – tumor e coração)
NaI
(diagnóstico tireóide)
FDG
(metabolismo glicose)
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PRODUÇÃO
IRRADIAÇÃO DO ALVO
PROCESSAMENTO (SÍNTESE)
EXPEDIÇÃO
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Instalações
Aceleradores (CV-28 e RDS-111)
Células de processamento
Sala para Expedição
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Instalações
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Aceleradores
CV-28
(p 24 MeV 25 mA)
RDS-111
(H-11 MeV 40 mA)
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REAÇÕES
iodo-123124Xe (p , 2n) 123Cs (ce, 6 min) 123Xe (ce, 2 h) 123I (ce, 13 h)
flúor-1818O (p
+, n) 18F
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Instalações
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Instalações
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Instalações
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Instalações
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Aceleradores
• CV-28 - (6)
• RDS111 - (X)
• Facilidades - (6)
• Manutenção - todos
Processamento (11)
Proteção radiológica (10)
(expedição)
I O E
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vias de contaminação
- inalação / ingestão
- contaminação de pele
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Contaminantes
zinco-65
flúor-18
iodo-123
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zinco-65
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flúor-18
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monitoramento individual
Dosímetros
(normal)
corpo inteiro
(periódico/eventual)
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dosimetria pessoal
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monitoramento ambiental
monitoramento de área
monitoramento de superfícies
amostragem de ar
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monitoramento ocupacional
amostragem de ar
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Proteção individual - EPI
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Controle de eventos
(mSv)
0,60 < investigação < 1,6
1,6 < intervenção
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O nível de investigação para monitoração
individual de IOE deve ser, para dose
efetiva, 6 mSv por ano ou 1 mSv em
qualquer mês.
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Sepra / Dira / IEN
Comissão organizadora
AGRADECIMENTOS
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Obrigado pela atenção!
João Carlos Pereira da SilvaServiço de Proteção Radiológica – IEN/CNEN
Ilha da Cidade Universitária (UFRJ) - Rio de Janeiro (RJ)[email protected]
www.ien.gov.br