Assessing individual external exposure doses from ambient dose equivalents is valuable for predictive and retrospective purposes when personal dosimeters are impractical. This study developed a model to assess individual external exposure doses from ambient dose equivalents, considering daily life patterns (location and time spent in various places), and evaluated parameters associated with individual external exposure doses, such as the reduction effects of radiation due to buildings and vehicles. The model parameters were evaluated using the robust datasets of environmental radiation measured in areas affected by the Fukushima Daiichi Nuclear Power Station (FDNPS) accident. The effective dose estimated by the model was compared to 106 daily personal dose equivalents measured using personal dosimeters in the residents’ living environments near the FDNPS. The estimated effective dose well consists with the measured personal dose equivalents, particularly when considering natural radiation in indoor dose estimation. This model is adequate for radiation protection, enabling the predictive and retrospective estimation of individual external exposure doses using environmental radiation monitoring data.

中文翻译：

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根据福岛第一核电站事故受影响地区的环境辐射评估个体外部暴露剂量


当个人剂量计不切实际时，根据环境剂量当量评估个体外部暴露剂量对于预测和回顾目的很有价值。本研究开发了一个模型，根据环境剂量当量评估个人外部暴露剂量，考虑日常生活模式（在不同地方停留的位置和时间），并评估与个人外部暴露剂量相关的参数，例如建筑物和车辆引起的辐射的减少效果。使用在福岛第一核电站 （FDNPS） 事故影响地区测量的环境辐射的强大数据集评估模型参数。将模型估计的有效剂量与在 FDNPS 附近居民的生活环境中使用个人剂量计测量的 106 个每日个人剂量当量进行了比较。估计的有效剂量与测得的个人剂量当量组成，特别是在室内剂量估计中考虑自然辐射时。该模型适用于辐射防护，能够使用环境辐射监测数据对单个外部暴露剂量进行预测和回顾性估计。