Calculation Method of Electric Field Induced by ELF Electric Field in Human Bodies using Two-step Process Method Combining Fast-multipole Surface Charge and SPFD Methods

被引：0

作者：

Sekiba Y. ^{[1
]}

Yamazaki K. ^{[2
]}

机构：

[1] Power System Analysis Group, Denryoku Computing Center, 2-11-1, Iwadokita, Komae

[2] Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry, 2-6-1, Nagasaka, Yokosuka

来源：

IEEJ Transactions on Fundamentals and Materials | 2019年 / 139卷 / 07期

关键词：

Dosimetry; Extremely-low-frequency electric field; Fast multipole method; SPFD method; Surface charge method;

D O I：

10.1541/ieejfms.139.309

中图分类号：

学科分类号：

摘要：

Regarding evaluation of human safety for exposure to ELF (extremely low frequency) electric field, numerical electromagnetic calculation on anatomical human model is carried out to obtain an induced inner electric field. In previous studies, calculation results using QS-FDTD (quasi static finite difference time domain) or SPFD (scalar potential finite difference) methods have been reported. Considering the electric quantities needed outside the human body, both of these methods require a higher computational cost. In this study, we proposed a two-step process method combining the fast-multipole surface charge and SPFD methods to evaluate the electric field induced in human body exposed to ELF electric field. The proposed method was applied to a comprehensive anatomical human model to obtain the inner electric field induced by external ELF electric field. Because the proposed method does not need to take any electric quantity into account outside the body, it saves a considerable amount of memory and computation time, as compared with the QS-FDTD method that is frequently used in previous studies. © 2019 The Institute of Electrical Engineers of Japan.

引用

页码：309 / 318

页数：9

共 37 条

[1] Guidelines for limiting exposure to time-varying electric and magnetic fields (1 - 100kHz), Health Phys, 99, pp. 818-836, (2010)
[2] Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz), Health Phys, 74, pp. 494-522, (1998)
[3] IEEE Standard for Safety Levels with Respect to Human Exposure to Electromagnetic Fields, 0 - 3 kHz, (2002)
[4] IEEE Standard for Safety Levels with Respect to Human Exposure to Radiofrequency Electromagnetic Fields, 3 kHz to 300 GHz, (2005)
[5] Dawson T.W., De Moerloose J., Stuchly M.A., Comparison of magnetically induced ELF fields in humans computed by FDTD and scalar potential FD codes, Appl. Comput. Electromagn. Soc. J., 11, 3, pp. 63-71, (1996)
[6] Dawson T.W., Stuchly M.A., High resolution organ dosimetry for human exposure to low-frequency magnetic fields, IEEE Trans. Magn., 34, 3, pp. 708-718, (1998)
[7] Orcutt N., Gandhi O.P., A 3-D impedance method to calculate power deposition in biological bodies subjected to time varying magnetic fields, IEEE Trans. Biomed. Eng., 35, 8, pp. 577-583, (1988)
[8] Tarao H., Hayashi N., Isaka K., Numerical analysys of induced current in human head exposed to nonuniform magnetic field including harmonics, IEEJ Trans. FM, 123, 11, pp. 1100-1107, (2003)
[9] Hamada S., Kobayashi T., Analysis of electric field induced by ELF magnetic field utilizing fast-multipole surface-charge-simulation method for voxel data, IEEJ Trans. FM, 126, 5, pp. 355-362, (2006)
[10] Yamazaki K., Kawamoto T., Fujinami H., Shigematsu T., On the method of investigating human exposure to nonuniform magnetic field, IEEJ Trans. FM, 127, 4, pp. 239-247, (2007)

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