Estimation of Maximal Whole-Body Averaged SAR of Grounded Human with Ankle Current of Simplified Phantom

カテゴリ: 研究会(論文単位)

論文No: EMT11048

グループ名: 【A】基礎・材料・共通部門 電磁界理論研究会

発行日: 2011/05/28

タイトル(英語): Estimation of Maximal Whole-Body Averaged SAR of Grounded Human with Ankle Current of Simplified Phantom

著者名: Kazuya Yanase(Nagoya Institute of Technology),Akimasa Hirata(Nagoya Institute of Technology),Osamu Fujiwara(Nagoya Institute of Technology),A. Y. Simba (NICT),Takuji Arima(NICT),Soichi Watanabe(NICT)

著者名(英語): Kazuya Yanase(Nagoya Institute of Technology),Akimasa Hirata(Nagoya Institute of Technology),Osamu Fujiwara(Nagoya Institute of Technology),A. Y. Simba (NICT),Takuji Arima(NICT),Soichi Watanabe(NICT)

キーワード: specific absorption rate (SAR)|resonance frequency|antenna|phantom

要約(日本語): The present study discusses the feasibility of a simple physical phantom for estimating whole-body averaged specific absorption rate (SAR) in humans grounded on the perfect conductor at their respective resonance frequencies. The whole-body averaged SAR in a human phantom becomes maximal at the resonance frequency. At this frequency, the whole-body averaged SAR has been reported to be close to the basic restriction. However, it is difficult to conduct SAR measurement in practical environments. A scheme is proposed to estimate whole-body averaged SAR of humans in terms of measured ankle current of a simplified phantom. This scheme utilizes an analogy of human bodies and a quarter-wavelength monopole antenna at their resonance frequencies. The effectiveness of our proposal has been computationally verified by comparing with the ankle currents of the realistic human model and equivalent phantom.

原稿種別: 日本語

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