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

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

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...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2016-05, Vol.308 (2), p.469-475
Hauptverfasser: Miyoshi, Hirokazu, Mashiko, Yuji, Maeda, Sunao, Yamada, Kenji, Mastumura, Jiro
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Measuring instruments
Nanoparticles
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radiation
Silica
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Zusammenfassung: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 137 Cs 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.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-015-4465-y