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| Format: | Artículo científico |
| Sprache: | en |
| Veröffentlicht: |
Sociedade Brasileira de Proteção Radiológica - SBPR
2018
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=722280826022 |
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Inhaltsangabe:
- Calibration of gamma cameras for the evaluation of accidental intakes of high-energy photon emitting radionuclides by humans based on urine samples Ämilie Louize Degenhardt Eder Augusto de Lucena Ana Letícia Dantas Wanderson de Oliveira Souza Bernardo Maranhão Dantas Biología gamma camera Internal dosimetry in vitro measurements The prompt response to emergency situations involving suspicion of intakes of radionuclides requires the use of simple and rapid methods of internal monitoring of the exposed individuals. The use of gamma cameras to perform in vivo measurements was investigated by the US-CDC in 2010. The present study aims to develop a protocol for the use gamma cameras to be applied on internal monitoring based on urine samples to evaluate intakes of high-energy photon emitting radionuclides in emergency situations. A gamma camera available in a public hospital located in the city of Rio de Janeiro was calibrated using a standard liquid source of 152Eu supplied by the LNMRI of the IRD. “Efficiency vs Energy” curves at 2 and 10 cm were obtained. Calibration factors, Minimum Detectable Activities, Minimum Detectable Intakes and Minimum Effective Doses were calculated for 131I and 137Cs. It has been concluded that the equipment evaluated in this work presents enough sensitivity for use in accident situations involving intakes of such radionuclides. 2018 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280826022 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.2A Vol.6