Presentation 2012-06-01
Comparison of Temperature Elevation in the Human Eyes for Different Microwave Exposure Scenarios
Takuya Oizumi, Ilkka Laakso, Akimasa Hirata,
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Abstract(in English) The eye is said to be one of the most sensitive organs to microwave heating. According to previous studies, the possibility of microwave-induced cataract formation has been experimentally investigated in rabbit and monkey eyes, but not for the human eye due to ethical reasons. In the present study, we investigated the temperature elevation in the lens, the skin around the eye, and the core temperature of numerical human phantom for intense far-field and near-field exposures. The temperature elevations in the human phantom were compared with the threshold temperatures for inducing cataracts, thermal pain in the skin, and reversible health effects such as heat exhaustion or heat stroke. For plane-wave exposure, the core temperature elevation is shown to be essential as suggested in the international guidelines and standards. For localized exposure of the human eye, the temperature elevation of the skin was essential, and the lens temperature did not reach its threshold for thermal pain. The tendency for localized exposure was almost the same even at different microwave frequencies.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) far-field exposure / near-field exposure / threshold temperature inducing biological effects / microwave heating / bioheat equation
Paper # EST2012-4
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Committee EST
Conference Date 2012/5/25(1days)
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Registration To Electronic Simulation Technology (EST)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Comparison of Temperature Elevation in the Human Eyes for Different Microwave Exposure Scenarios
Sub Title (in English)
Keyword(1) far-field exposure
Keyword(2) near-field exposure
Keyword(3) threshold temperature inducing biological effects
Keyword(4) microwave heating
Keyword(5) bioheat equation
1st Author's Name Takuya Oizumi
1st Author's Affiliation Nagoya Institute of Technology()
2nd Author's Name Ilkka Laakso
2nd Author's Affiliation Nagoya Institute of Technology
3rd Author's Name Akimasa Hirata
3rd Author's Affiliation Nagoya Institute of Technology
Date 2012-06-01
Paper # EST2012-4
Volume (vol) vol.112
Number (no) 74
Page pp.pp.-
#Pages 6
Date of Issue