人体暴露于电磁辐射的热效应分析(二维病例)

Proceedings of the 9th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2004. DIPED 2004. Pub Date : 2004-12-27 DOI:10.1109/DIPED.2004.242677

E. Nikolaeva, D. Nikolaev, L. Shoshiashvili, R. Zaridze

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引用次数: 6

摘要

通过计算机模拟研究了手机电磁场对人体头部的热效应。采用了一种结构异质逼真的人头模型。EM分析通过时域有限差分(FDTD)方法进行(Taflove, A.和Hagness, S.C.，“计算电动力学:时域有限差分方法”，Artech House, 2000)。利用生物热(BH)方程(Bernardi, P. and Pisa, S.， IEEE Trans)评估了比吸收率(SAR)并进一步研究了热效应。微波理论技术，vol.48, p.1118- 26,1998);研究了不同频率、功率和曝光时间下的温度场分布和温升。结果表明，暴露时间和环境温度必须是安全标准中的两个特征量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of thermal effects in human exposed to EM radiation (2D case)

The thermal effects of a cellular phone electromagnetic (EM) field on the human head were studied by computer simulation. A structural heterogeneous realistic model of the human head was used. EM analysis was performed via the finite-difference time-domain (FDTD) method (Taflove, A. and Hagness, S.C., "Computational Electrodynamics: the finite difference time-domain method", Artech House, 2000). Specific absorption rate (SAR) was evaluated and further thermal effects were investigated using the bioheat (BH) equation (Bernardi, P. and Pisa, S., IEEE Trans. Microwave Theory Tech., vol.48, p.1118-26, 1998); the temperature field distribution and temperature rise were investigated for different frequencies, powers and exposure times. The results show that exposure time and environmental temperature must be two of the characteristic quantities in a safety standard.

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Proceedings of the 9th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2004. DIPED 2004.

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