Abstract This research explored the use of fiber optics as a distributed sensing dosimeter. It had been demonstrated in previous research that Rayleigh scattering within a fiber increases with radiation dose. Therefore, measuring the increase over a spatial distribution would give a distributed measurement of dose if properly correlated. This is offered by the technology of the Optical Time Domain Reflectometer (OTDR) and the more advanced Optical Frequency Domain Reflectometer (OFDR). As a scoping experimental study with OFDR, an ionizing radiation source was used at different orders of magnitude to irradiate several different test rigs. It was demonstrated at the 1 MGy dose range, the response was a discernible increase in scattering that was distributed spatially in the same manner as the dose, therefore suggesting such use in sensing applications.

中文翻译：

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用于分布式传感应用的电离辐射环境中光纤响应的实验分析

摘要 本研究探讨了光纤作为分布式传感剂量计的用途。先前的研究已经证明，光纤内的瑞利散射会随着辐射剂量的增加而增加。因此，如果相关联，测量空间分布上的增加将给出剂量的分布式测量。这是由光时域反射计 (OTDR) 和更先进的光频域反射计 (OFDR) 技术提供的。作为 OFDR 的范围界定实验研究，使用不同数量级的电离辐射源来照射几个不同的测试台。结果表明，在 1 MGy 剂量范围内，响应是散射的明显增加，其空间分布与剂量相同，