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Effects of PVA-GTA-I radiochromic gel dosimeter components on optical dose-response

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Published under licence by IOP Publishing Ltd
, , Citation Shin-ichiro Hayashi et al 2022 J. Phys.: Conf. Ser. 2167 012014 DOI 10.1088/1742-6596/2167/1/012014

1742-6596/2167/1/012014

Abstract

In recent years, a novel radiochromic gel dosimeter was developed that utilizes the color development of a polyvinyl alcohol-iodide (PVA-I) complex. In this study, we explore the effects of different iodide salts (LiI, NaI, KI, CsI, NH4I, CaI2, and ZnI2) and PVAs with different degrees of polymerization (500, 1000, and 1500) and saponification (80, 88, and 98 mol%) were investigated on a PVA-GTA-I gel dosimeter using PVA that was chemically crosslinked with glutaraldehyde (GTA) as a matrix. The results showed that these substitutions had negligible effect on dose-responses, such as sensitivity and dose-rate independence.

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