Effect of ionizing radiation on the colorimetric properties of PVA-GTA Xylenol Orange Fricke gel dosimeters

Abstract

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Gel Dosimetry

“…The manuscript of Scotti et al [ 11 ] aims to investigate, by means of spectrophotometric analyses, how the sensitivity to the radiation dose and the range of the linearity of the dose–response curve of Fricke gel dosimeters based on poly(vinyl alcohol) (PVA) as the gelling agent [ 12 ] and glutaraldehyde (GTA) as the cross-linker and loaded with xylenol orange (XO) [ 13 ] dosimeters are influenced by FAS and XO concentrations. The effect of different concentrations of such compounds on self-oxidation phenomena occurring in the investigated Fricke gel dosimeters was evaluated.…”

A Review of PRESAGE Radiochromic Polymer and the Compositions for Application in Radiotherapy Dosimetry

“…Additionally, the radiation detection sensitivity becomes weaker during the increase in the linear energy transfer (LET), which hinders the absolute dose evaluation [ 50 , 51 ]. However, recently, low-diffusion Fricke gel has been developed, such as PVA-GTA Xylenol Orange Fricke gel [ 52 , 53 ]. Fricke gel has been improved into the MRI-based nanocomposite Fricke gel (NC-FG), which is free from the diffusion and has LET independence due to the incorporation of 1% ( w / w ) clay nanoparticles [ 50 ].…”

Impact of Salt on Thermal Stability and Dose Response of the Fricke-XO-Pluronic F-127 3D Radiotherapy Dosimeter

“…It allows for significant reduction in the diffusion of irradiation products from the irradiated to the non-irradiated area of the dosimeter. Over the years, the most popular were gel matrices made of natural and synthetic polymers, such as gelatin [ 10 , 11 , 12 ] and agarose [ 13 , 14 ] as natural polymers, and poly(vinyl alcohol) PVA [ 15 , 16 ] corresponding to synthetic polymers. Gelatin shows high transparency, much higher than agarose.…”