Analysis of Electric Field Induced by ELF Magnetic Field Utilizing Fast-Multipole Surface-Charge-Simulation Method for Voxel Data

• Hamada Shoji

  Kyoto University

• Kobayashi Tetsuo

  Kyoto University

Bibliographic Information

Other Title

• ボクセルデータ用高速多重極表面電荷法による低周波磁界誘導電界計算
• ボクセルデータヨウ コウソク タジュウキョク ヒョウメン デンカホウ ニ ヨル テイシュウハ ジカイ ユウドウ デンカイ ケイサン

Abstract

This paper presents a fast-multipole surface-charge-simulation method for calculating three-dimensional Laplacian fields in voxel models. This method treats a surface of a voxel that has different inside and outside conductivities as a surface element of the indirect BEM(Boundary Element Method). The main features of the proposed method are as follows. (1) An O(D²) performance in the memory-capacity and operation-cost is provided by applying the diagonal form Fast-Multipole-Method, when the number of voxels is about D³. (2) The boundary matching is imposed by the continuity of the total flux passing through each element, which guarantees the solution globally satisfying the Gauss' law, therefore the solution is globally stabilized. This method is successfully applied to calculate the electric field induced by an applied homogeneous ELF(Extremely Low Frequency) magnetic field in a human head model that has 1mm×1mm×1mm voxel size.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 126 (5), 355-362, 2006

  The Institute of Electrical Engineers of Japan

Keywords

• voxel
• fast multipole method
• surface charge simulation method
• ELF magnetic field
• induced electric field

Details

• CRID: 1390001204593157248
• NII Article ID: 10018111161
• NII Article ID: 20000924754
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.126.355
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 7946818
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7946818
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms/126/5/126_5_355/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed