Results of process equipment imaging by tomographic gamma scan
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Chemical Engineering Transactions
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Gamma scanning is a nuclear inspection technique widely used for troubleshooting industrial process
equipments in refineries and petrochemicals. A radiation source and detector move vertically along the height
of the vessel and the radiation readings are used to plot the graph of density profile. In recent years, many
improvements have been added to this technique, but essentially the result of gamma scanning still consists
of a 1-D density plot. Developed in 2012, the tomographic gamma scan uses image reconstruction techniques
to show the result of gamma scan as a 2-D density distribution image. In this work, we present the current
status of the technology and the results obtained by applying the technique to real operating process
equipment. The results present images that match well with the 1-D density plots obtained by the conventional
gamma scan and reveal process and operational problems that has never been visualized before with the
traditional technique. The tomographic gamma scan can be immediately applied in practice with low financial
investment.
Como referenciar
HARAGUCHI, MARCIO I.; KIM, HAE Y.; CALVO, WILSON A.P. Results of process equipment imaging by tomographic gamma scan. Chemical Engineering Transactions, v. 69, p. 649-654, 2018. DOI: 10.3303/CET1869109. Disponível em: http://repositorio.ipen.br/handle/123456789/29424. Acesso em: 20 Mar 2026.
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.