Ethylene-vinyl acetate detector exposed to gamma radiation and evaluated via principal component regression
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Brazilian Journal of Radiation Sciences
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Ethylene-vinyl acetate (EVA) is the flexible plastic material commonly used in industries. The EVA samples, in
green, white and black colors were irradiated with absorbed doses of 0.01 kGy up to 10.0 kGy using a 60Co
Gamma Cell-220 system, and the Fourier Transform Infrared (FTIR) spectrophotometry technique was used
for evaluating the samples. This work aimed to investigate EVA samples in measurements with gamma
radiation, analyzing the linearity through the Principal Component Regression (PCR) method and its
sensitivity. For sensitivity and linearity, the green samples showed the best results, followed by white and black
EVA samples. The PCR method inflated gradually the number of principal components, then reducing the
residuals between the measured and calculated values, consequently obtaining maximum linearity of 1.000 for
all of the EVA samples. In conclusion, the FTIR was adequate for the acquisition of absorbance spectra; the
linearity via PCR and sensitivity showed good results indicating that the EVA detectors can be useful in
radiation measurements.
Como referenciar
OLIVEIRA, L.N.; NASCIMENTO, E.O.; ANTONIO, P.L.; CALDAS, L.V.E. Ethylene-vinyl acetate detector exposed to gamma radiation and evaluated via principal component regression. Brazilian Journal of Radiation Sciences, v. 10, n. 2A, p. 1-17, 2022. DOI: 10.15392/bjrs.v10i2A.1760. Disponível em: http://repositorio.ipen.br/handle/123456789/33382. Acesso em: 30 Dec 2025.
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.