Abstract Aqueous solution of pH indicator dye tetrabromophenolphthalein ethyl ester containing chloral hydrate was studied for its possibility to be used as a liquid dosimeter. The useful measuring range was found to be (0.5–2 kGy) depending on the concentration of both dye and chloral hydrate added. The system has good stability before and after irradiation under different storage conditions. A comparison study between direct irradiation of the dye containing chloral hydrate and indirect method that executed through avoiding exposure of the dye to irradiation and irradiate the chloral hydrate only followed by outputs for interaction with dye was investigated seeking to extend the dose range up to 5 kGy.

中文翻译：

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四溴酚酞乙酯作为液体剂量计的可能用途

摘要 研究了含有水合氯醛的pH指示剂染料四溴酚酞乙酯水溶液作为液体剂量计的可能性。发现有用的测量范围为 (0.5–2 kGy)，具体取决于添加的染料和水合氯醛的浓度。该体系在不同储存条件下辐照前后均具有良好的稳定性。对含有水合氯醛染料的直接辐照与通过避免染料暴露于辐照并仅辐照水合氯醛随后输出与染料相互作用的间接方法进行了比较研究，以寻求将剂量范围扩大至 5 kGy .