Paper Abstract and Keywords |
Presentation |
2010-03-04 15:15
Uncertainty Analysis of Temperature Rise in Rats for 1.5-GHz Microwave Exposure Yuya Kanai, Akimasa Hirata, Osamu Fujiwara (Nagoya Inst. of Tech.), Hiroshi Masuda (Univ. of Bordeaux), Hiroki Kawai (NICT), Takuji Arima (NICT/Tokyo Univ. of Agr and Tech.), Soichi Watanabe (NICT) MW2009-193 Link to ES Tech. Rep. Archives: MW2009-193 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Specific absorption rate (SAR) is used as a metric for human protection from microwave exposure although biological effect for microwave exposure is caused by the temperature rise. In particular, peak spatial-average SAR is used as a metric for localized exposures, however, the rationale for the limit has not been well investigated. In the present study, we developed an active blood perfusion model which takes into account the temperature dependency of core and local temperatures. We calculated SAR and resultant temperature rise in rats due to 1.47-GHz microwave energy. As a result, we found that calculated and measured results are in reasonable agreement between body-core temperatures, while the computed temperature rise in the brain is somewhat smaller than the measured one especially for 8-week-old rats. The reason for this difference may be attributed to reduced metabolism or thermoregulatory response due to the administration of anesthesia. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Microwave exposure / SAR(specific absorption rate) / FDTD-method / bio-heat equation / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 431, MW2009-193, pp. 83-88, March 2010. |
Paper # |
MW2009-193 |
Date of Issue |
2010-02-25 (MW) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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MW2009-193 Link to ES Tech. Rep. Archives: MW2009-193 |