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  • Title: Dominant factors influencing whole-body average SAR due to far-field exposure in whole-body resonance frequency and GHz regions.
    Author: Hirata A, Kodera S, Wang J, Fujiwara O.
    Journal: Bioelectromagnetics; 2007 Sep; 28(6):484-7. PubMed ID: 17486582.
    Abstract:
    Electromagnetic (EM) absorption of the human body for far-field exposure at the International Commission on Non-Ionizing Radiation Protection (ICNIRP) reference level has two peaks in the resonance frequency and GHz regions. Dominant factors influencing whole-body average specific absorption rate (SAR) in these two frequency regions have not yet been revealed sufficiently. The main purpose of this study is to clarify the dominant factors influencing EM power absorption in terms of whole-body average SAR in an anatomically based model compared with those in a homogeneous anthropomorphic model and corresponding cuboid models. Computational results show that EM absorption peak in the resonance frequency region greatly depends on the electric properties of tissue, while the peak in the GHz region is affected mainly by the surface area of the model.
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