60 GHz局部和均匀暴露条件下兔眼温度升高的数值分析

... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies Pub Date : 2011-10-26 DOI:10.1145/2093698.2093795

K. Sasaki, M. Kojima, K. Wake, Soichi Watanabe, Yukihisa Suzuki, A. Hirata

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引用次数: 1

摘要

本研究对60 ghz毫米波对家兔眼部照射进行了数值剂量学研究。我们比较了透镜天线局部暴露和平面波均匀暴露计算出的温度升高。在这里，根据之前的研究，将入射功率密度归一化为角膜表面入射功率的空间平均值。透镜天线的入射功率密度峰值是平面波的5.3倍。因此，透镜天线暴露的最高温度升高高于平面波暴露的最高温度升高。由此可见，晶状体天线暴露的眼损伤阈值入射功率密度可能比平面波暴露的低。

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A numerical analysis of temperature elevation in a rabbit ocular with localized and uniformed exposure conditions at 60 GHz

A numerical dosimetry was performed for a rabbit ocular exposure by 60-GHz millimeter wave in this study. We compared calculated temperature elevation between localized exposure by a lens antenna and uniformed exposure by plane wave. Here, incident power density was normalized against spacial average of incident power over the surface of cornea according to the previous study. The peak incident power density of the lens antenna was 5.3 times higher than that of the plane wave. Therefore, the maximum temperature elevation by the lens antenna exposure was higher than that by the plane wave exposure. Thus, possibility was shown that threshold incident power density for ocular injury with the lens antenna exposure becomes lower than that with the plane wave exposure.

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... International Symposium on Applied Sciences in Biomedical and Communication Technologies. International Symposium on Applied Sciences in Biomedical and Communication Technologies

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