Development of a glycerol–CuSO4 polymer for high gamma ionizing radiation dosimetry

Gabriela Pontes Cardoso; Jony Marques Geraldo; Adriana de Souza Medeiros Batista

doi:10.1590/0104-1428.20250079

Short Communication

Development of a glycerol–CuSO₄ polymer for high gamma ionizing radiation dosimetry

Gabriela Pontes Cardoso; Jony Marques Geraldo; Adriana de Souza Medeiros Batista

http://dx.doi.org/10.1590/0104-1428.20250079 Polímeros: Ciência e Tecnologia, vol.36, n2, e20260017, 2026

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Abstract

This study presents a novel glycerol-based polymeric material doped with 0.12% (w/w) copper (II) sulfate pentahydrate for high-dose gamma dosimetry. Upon irradiation with doses ranging from 10 to 250 kGy using a Cobalt-60 source, the initially greenish material exhibited a progressive color change from yellow to dark red. Two analytical approaches were employed to evaluate the dosimetric potential: UV-Vis spectrophotometry, which demonstrated an exponential increase in absorbance at 456 nm up to 70 kGy, and digital image analysis using ImageJ, which extended the useful dose range to 250 kGy through measurements of green channel optical measurements. Both methods yielded reproducible calibration curves, highlighting the material’s potential as a low-cost, easy-to-handle dosimeter. This short communication reports preliminary findings that support further investigation into the material’s dosimetric mechanisms and optimization.

Keywords

copper sulfate pentahydrate, gamma dosimetry, glycerol-based polymer, ImageJ analysis, UV-Vis spectrophotometry

References

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Development of a glycerol–CuSO4 polymer for high gamma ionizing radiation dosimetry

Gabriela Pontes Cardoso; Jony Marques Geraldo; Adriana de Souza Medeiros Batista

Abstract

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Polímeros: Ciência e Tecnologia

Development of a glycerol–CuSO₄ polymer for high gamma ionizing radiation dosimetry