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首页> 外文期刊>Polymers for advanced technologies >Preparation of W-1/O/W-2 emulsion to limit the diffusion of Fe3+ in the Fricke gel 3D dosimeter
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Preparation of W-1/O/W-2 emulsion to limit the diffusion of Fe3+ in the Fricke gel 3D dosimeter

机译:W-1 / O / W-2乳液的制备限制Fe3 +在Fricke凝胶3D剂量计中的扩散

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摘要

The irradiation of tumors in radiotherapy requires accurate 3D dosimetry. The Fricke 3D dosimeters, which were considered to be high potential of application in 3D dosimetry, suffer from a reduced temporal integrity of dose distribution caused by Fe3+ ions diffusion. To overcome the drawback, we firstly synthesized a kind of amphiphilic molecules with critical micelle concentration of 0.45 g/L and hydrophile-lipophile balance value of 10, then prepared multiple emulsions by self-assembling those molecules in Fricke solution under liquid paraffin, and finally obtained Fricke hydrogel embedded with the multiple emulsions. The diffusion coefficient of Fe3+ ions in the embedded Fricke hydrogel was measured to be 0.17 mm(2)/h. The hydrogel dosimeter exhibits considerable potential for use in dose verification applications.
机译:放射治疗中肿瘤的照射需要精确的3D剂量。 被认为是3D剂量测定的施用高潜力的Fricke 3D剂量计,遭受由Fe3 +离子扩散引起的剂量分布的时间完整性降低。 为了克服缺点,我们首先合成了一种临界胶束浓度为0.45g / l和亲水性 - 亲脂性平衡值10的两亲分子,然后通过在液体石蜡下的果冻中自组装这些分子来制备多种乳液,最后 获得了嵌入多个乳液的Fricke水凝胶。 将嵌入式Fricke水凝胶中的Fe3 +离子的扩散系数测量为0.17mm(2)/ h。 水凝胶剂量计表现出可用于剂量验证应用的相当大的潜力。

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