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KMID : 0364920100350030099
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Journal of Radiation Protection and Research
2010 Volume.35 No. 3 p.99 ~ p.104
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RABBIT HEATING BY MICROWAVE EXPOSURE AT VARIOUS AMBIENT TEMPERATURES
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Kolganova Olga I.
Zhavoronkov Leonid P.
Petin Vladislav G.
Kim Jin-Kyu
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Abstract
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The potential ability of environmental temperature to enhance the effect of microwave radiation (7 GHz) was experimentally studied for rabbit heating after simultaneous application of both agents. The tested ambient temperatures (30 and 38℃) didn’t exert a considerable influence upon rabbit heat homeostasis after the used duration of exposure (3 hours and 15 minutes, correspondingly). The synergistic interaction of microwave irradiation and ambient temperature was demonstrated for rabbit heating. Power flux density of microwave irradiation was shown to be a determinant of the synergistic interaction effectiveness. For the fixed ambient temperature (30℃), the synergism was shown to be observed only within a definite power flux density (0?100 mW·cm?2), inside of which there was an optimal intensity (20 mW·cm?2), which maximized the synergistic effect. Any deviation of the power flux density from the optimal value resulted in a reduction of the synergy. It is concluded that any assessment of the health or environmental risks should take into account the synergistic interaction between ambient temperature and microwave radiation.
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KEYWORD
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Microwave, Hyperthermia, Synergistic Interaction, Rabbit, Body Temperature, Thermoregula
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