Special Absorption Rate (SAR) is an important topic in bioelectromagnetics. Although the problem may not be electrically large if we simulate the head only for the low frequencies, however, the tissue layer is relately thin compared to the dimensions of a human head. Therefore, it requires the large computational resource too. Actually, import of a model for an EM software is also very important. GEMS provides a powerful CAD file format connected to the most popular commercial software packages.
In this demo case, the human head has 47 layers of tissues with 1 mm resulotion, and the computational domain is discretized into 321x271x250 uniform cells, and the simulation took 2 hours and 11 minutes on an intel dual core 2.33GHz cpu, or 1 hour 10 minutes on 2 dual core computers. GEMS can import the original MRI file (CT scan data) directly into GEMS graphical interface.
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| Antenna set near human head |
3-D SAR Distribution (1 ) |
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| 3-D SAR distribution (2) |
3-D Far field pattern |
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| Far field pattern (horizontal plane) |
Far field pattern (vertical plane) |
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| Heat distribution (1) |
Heat distribution (2) |
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SAR Distribution in a Special Cut
(transparent style) |
SAR Distribution in a Special Cut
(transparent style) |
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SAR Distribution in a Special Cut
(solid style) |
SAR Distribution in a Special Cut
(solid style) |
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SAR Distribution in a Special Cut
(transparent style, arbitry angle) |
SAR Distribution in a Special Cut
(solid style, arbitry angle) |
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3-D SAR Distribution in entire human body
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3-D SAR Distribution in entire human body
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