| 基站天线远场全身暴露人体内SAR计算 |
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| 引用本文： | 刘宝华,杨旭富,孔令丰,李永明.基站天线远场全身暴露人体内SAR计算[J].通信技术,2010,43(8):228-230. |
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| 作者姓名： | 刘宝华 杨旭富 孔令丰 李永明 |
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| 作者单位： | 1. 广东省环境辐射监测中心,广东,广州,510300
2. 重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400044 |
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| 基金项目： | 广东省环境保护厅专项资金资助 |
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| 摘 要： | 采用人体CT数据,重构形成三维模型,并赋予组织器官电磁参数,构成适合电磁计算的人体模型。应用XFDTD软件计算在频率900MHz、1800MHz和2100MHz,功率密度200μW/cm^2、40μW/cm^2、8μW/cm^2和4μW/cm^2的移动通信基站远场全身暴露下,人体模型内比吸收率分布。并与《电磁辐射防护规定（GB8702-1988）》基本限值进行比较,为设计有效的电磁场生物效应实验方案、控制暴露条件提供理论剂量学依据。
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| 关 键 词： | 全身暴露 远场 比吸收率 基本限值 |
SAR Calculation in Wholly-exposed Human Body in the Far-field of Mobile Communication Base-stations |
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| LIU Bao-hua,YANG Xu-fu,KONG Ling-feng,LI Yong-ming.SAR Calculation in Wholly-exposed Human Body in the Far-field of Mobile Communication Base-stations[J].Communications Technology,2010,43(8):228-230. |
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| Authors: | LIU Bao-hua YANG Xu-fu KONG Ling-feng LI Yong-ming |
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| Affiliation: | 1.Guangdong Environmental Radiation Monitoring Center, Guangzhou Guangdong 510300, china; 2.State Key Laboratory of Power Transmission Equipment ＆ System Security and New Technology, Chongqing University, Chongqing 400044, China) |
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| Abstract: | By using CT data of human body to reconstruct three-dimensional model, and endowing this model with the electromagnetic parameters of tissues and organs, the human body model suitable for electromagnetic computation is thus formed. The whole body is exposed in the far field of mobile communication base-stations at the frequency of 900MHz, 1800MHz and 2100MHz and the power density of 200μW/cm ^2 , 40μW/cm^ 2 , 8μW/cm ^2 and 4μW/cm ^2 . The XFDTD software is applied to calculating the specific absorption rate in the human-body model. By comparison of specific absorption rate with the basic limit of ＂regulations for electromagnetic radiation protection （GB8702-1988）＂, a theoretical dosimetry is provided for designing effective experimental scheme of electromagnetic-field biological effects and controlling the exposure conditions. |
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| Keywords: | whole-body exposure far field SAR（specific absorption rate） basic limit |
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