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Reversible radiochromic plate based on polyvinyl alcohol-iodide complex containing silica nanoparticles

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Abstract

A radiochromic plate based on a reversible change between iodide and iodine was prepared using a polyvinyl alcohol–iodide complex, silica nanoparticles, and agarose. X-ray (30 kV, 15 mA) irradiation of the plate changed it to a red color, which gradually disappeared and was completely erased within a day after stopping X-ray irradiation. The minimum detection dose was about 0.5 Gy for X-rays and 10 Gy for 137Cs γ-rays. The G-value for the oxidation of I was estimated to be about 19.6 in a neutral solution and about 20.64 in an acidic solution.

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Correspondence to Hirokazu Miyoshi.

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Miyoshi, H., Mashiko, Y., Maeda, S. et al. Reversible radiochromic plate based on polyvinyl alcohol-iodide complex containing silica nanoparticles. J Radioanal Nucl Chem 308, 469–475 (2016). https://doi.org/10.1007/s10967-015-4465-y

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  • DOI: https://doi.org/10.1007/s10967-015-4465-y

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