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Realizing Highly Localized Exposure in Small Animals with Absorbing Material Covered Holder to Test Biological Effects of 1.5GHz Cellular Telephones
Jianqing WANG Osamu FUJIWARA
IEICE TRANSACTIONS on Communications
Publication Date: 2003/05/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Electromagnetic Compatibility(EMC)
bio-electromagnetic environment, cellular telephone, animal experiment, exposure setup, absorbing material,
Full Text: PDF(1.9MB)>>
In testing the possible biological effects of electromagnetic exposure from cellular telephones in small animals such as mice, it is essential to realize a highly localized head exposure as close as possible to that due to cellular telephones in humans. In this study, a 1.5GHz exposure setup was developed which has a highly localized specific absorption rate (SAR) of 2W/kg in the mouse brain and a low whole-body averaged SAR of 0.27W/kg. The low whole-body averaged SAR was realized by using a flexible magnetic sheet attachment on the mouse holder. Its validity has been carefully examined by both numerical simulation with an anatomically based mouse model and experimental simulation with a solid mouse phantom. Good agreement was obtained between the numerical and experimental results, which confirmed the effectiveness of the magnetic sheet attachment to the mouse holder.