A versatile radiochromic dosimeter for low-medium gamma radiation and its application to food irradiation.

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dc.contributor.authorLopes, Franceline Aparecida
dc.contributor.authorFerreira, Giovana Ribeiro
dc.contributor.authorFranco, Marcella Rocha
dc.contributor.authorSchimitberger, Thiago
dc.contributor.authorFaria, Luiz Oliveira de
dc.contributor.authorBianchi, Rodrigo Fernando
dc.date.accessioned2018-02-02T13:14:37Z
dc.date.available2018-02-02T13:14:37Z
dc.date.issued2017
dc.description.abstractThis article presents a novel radiochromic film for selective detection of low-medium (0–10 kGy) gamma radiation (60Co) doses. This dosimeter is based on a printed fluorescent multilayer structure comprising a paper substrate having layers of copper phthalocyanine (DY220) (a green emitter material) on the bottom, and layers of poly[2-methoxy-5(20-ethylhexyloxy)-p-phenylenevinylene] (MEH-PPV) (a green-light absorber, red emitter, and radiation sensitive polymer) on the top. The effect of gamma radiation on the optical properties of DY220/MEH-PPV was described: it was observed as a strong correlation between radiation dose and fluorescent, color coordinates for CIE (1931) chromatic diagram, and Pantone color reference of the dosimeter. The rate of these changes can be altered by manipulation of top–bottom layers to represent easily the radiation dose to be determined in a wide range. This versatile dosimeter has many uses in the field of food radiation for monitoring, quality assurance, and control of the gamma radiation process.pt_BR
dc.identifier.citationLOPES, F. A. et al. A versatile radiochromic dosimeter for low-medium gamma radiation and its application to food irradiation. Journal of Applied Polymer Science, v. 1, p. 1-5, 2017. Disponível em: <http://onlinelibrary.wiley.com/doi/10.1002/app.45729/abstract>. Acesso em: 16 jan. 2018.pt_BR
dc.identifier.doihttps://doi.org/10.1002/app.45729
dc.identifier.issn1097-4628
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/9423
dc.identifier.uri2http://onlinelibrary.wiley.com/doi/10.1002/app.45729/abstractpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectConducting polymerspt_BR
dc.subjectSensors and actuatorspt_BR
dc.subjectOptical propertiespt_BR
dc.subjectDegradationpt_BR
dc.titleA versatile radiochromic dosimeter for low-medium gamma radiation and its application to food irradiation.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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