Radiochromic Fuchsine-Gel and Its Possible Use for Low Dosimetry Applications

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• 作者：S. M. Gafar and M. A. El-Ahdal
• 关键词：dyes ; gels ; irradiation ; radiation ; UV-vis spectroscopy
• 刊名：Advances in Polymer Technology
• 出版年：2016
• 出版时间：Summer 2016
• 年：2016
• 卷：35
• 期：2
• 页码：146-151
• 全文大小：404K
• ISSN：1098-2329

文摘

A new dyed–gelatin gel shows promise as a stable dosimeter for low-dose dosimetry processing. Fuchsine acid cyanide (FAC) dye diffuses in gelatin, forming a colorless sample, which developed a color with the increase in absorbed doses. Upon irradiation, the sample turned pink and the color change was measured at 550 nm using UV-vis spectroscopy. A formulation suitable for dosimetry was investigated by varying the concentrations of FAC. This dosimeter was also evaluated for stability, dose sensitivity, and irradiation effect dependence. On the other hand, it can be used as a dosimeter in a relatively dose range 1 to 170 Gy. The radiation chemical yield (G value) and pre- and postirradiation stability were studied.