| 高功率脉冲微波辐照大鼠体内场强的数值模拟 |
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| 引用本文： | 裴剑,王连坤,齐红星,陈树德,乔登江.高功率脉冲微波辐照大鼠体内场强的数值模拟[J].山西大学学报(自然科学版),2011,34(3):425-432. |
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| 作者姓名： | 裴剑 王连坤 齐红星 陈树德 乔登江 |
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| 作者单位： | 华东师范大学精密光谱科学与技术国家重点实验室,上海,200062 |
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| 基金项目： | 长江学者和创新团队发展计划资助课题; 上海市重点学科建设资助课题(B408); 国家重点基础研究发展计划(973项目No.2011CB503701) |
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| 摘 要： | 文章在建立大鼠电磁模型的基础上,用时域有限差分法(FDTD)分别计算了2.71 GHz和9.33 GHz高功率脉冲微波(HPPM)辐照大鼠时,大鼠体内,尤其是心脏、肝脏、大脑等器官的电场强度分布.结果显示,2.71 GHz的HPPM腹部和侧部方向辐照时,大鼠各器官的场强从大到小依次为心脏、大脑、肝脏;9.33 GHz HPPM辐照时,场强从大到小依次为大脑、肝脏、心脏.并且相同功率密度的2.71 GHz的HPPM入射到大鼠体内的平均场强约为9.33 GHz HPPM的4倍.结果表明,脉冲微波入射到大鼠体内各器官的场强分布存在一定差异,并与微波的频率以及微波入射方向密切相关.因此,研究HPPM生物效应时,需深入分析生物体内部的场强分布,才能科学合理地表示产生生物效应的电磁辐射剂量,得到较正确的高功率脉冲微波生物效应的量效关系.
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| 关 键 词： | 高功率脉冲微波(HPPM) 时域有限差分法(FDTD) 体内电场强度 |
Numerical Simulation of in Vivo Distribution of Electric Field Intensity in Rats Irradiated by HPPM |
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| PEI Jian,WANG Lian-kun,QI Hong-xing,CHEN Shu-de,QIAO Deng-jiang.Numerical Simulation of in Vivo Distribution of Electric Field Intensity in Rats Irradiated by HPPM[J].Journal of Shanxi University (Natural Science Edition),2011,34(3):425-432. |
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| Authors: | PEI Jian WANG Lian-kun QI Hong-xing CHEN Shu-de QIAO Deng-jiang |
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| Institution: | PEI Jian,WANG Lian-kun,QI Hong-xing,CHEN Shu-de,QIAO Deng-jiang(East China Normal University,State Key Caboratory of Precision Spectroscopy,Shanghai 200062,China) |
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| Abstract: | On the basis of setting up electromagnetic model of rat,FDTD method was used to calculating in vivo distribution of electric field intensity in the heart,liver and brain of rats irradiated by 2.71 GHz and 9.33 GHz HPPM.The results demonstrates that the descending order of field intensity in rats were heart,brain and liver by 2.71 GHz HPPM irradiation from abdomen and lateral direction,and the descending order of 9.33 GHz HPPM field intensity in rats were brain,liver and heart.The average field intensity of ... |
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| Keywords: | HPPM FDTD electric field intensity in vivo |
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