Abstract
Rectal and subcutaneous temperatures were studied in experiments on 170 animals—dogs, cats, rabbits, rats, and frogs—by the method of continuous thermometry in super-high-frequency electromagnetic fields of different intensities. In addition, thermometry was carried out in muscles and brain of rabbits. The survival time of various animals was determined, as well as the temperature increase. The characteristics of heating and cooling were investigated. The temperature curves followed the law of ascending and descending exponentials in heating and cooling, respectively. The heating effect was greatest in the subcutaneous tissue, less in the brain and deep in the muscles of the thigh, and even less in the rectum. The thermal effect, in the super-high-frequency field, depends on the energy flux, the exposure time, and the size and species of the animal. The lower limit of the “thermal conditions” which cause the death of small animals, including cats (lethal effect), is 0.05 watt/cm2. The lower limit of the “thermal conditions”., at which there is no heating effect on tissues, is 0.01 watt/cm2.
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