Deposition of electromagnetic energy in animals and in models of man with and without grounding and reflector effects

Abstract

Generalized curves are given for rates of whole‐body absorption of electromagnetic energy by models of human beings as a function of frequency. Exposures were made in free space, or when the model made electrical contact with the ground. The effects of the presence of reflecting surfaces also were analyzed. Peaks of absorption with and without a ground, are projected, respectively, to be (31 to 34 MHz) and (62 to 68 MHz) × (1.75/height of model in meters). Rates of energy deposition are given for models of man and for animals subjected to radiation at a power density of 10 mW/cm 2 for the various conditions of exposure. At resonance, values of whole‐body absorption as high as 4,077 to 8,154 watts for the adult human being are predicted. The times‐to‐convulsion of ∼100‐g rats at power densities of 3 to 20 mW/cm 2 confirmed predictions of extremely high rates of absorption in the presence of reflecting surfaces.