Figure 6.5 Relation Between Microwave Irradiation duration and Power Density on the Threshold to Cause Cataract on Rabbit (f=2.45 GHz) Testis The following thermal effects (damage) of microwaves on testes are well known. [O'Connor, M. E„ 1980 / Michaelson, S. M„ 1980] • Degeneration of epidermal cell layer of the spermatovessel • Marked decrease of the matured spermatocytes Sensory Organ Table 6.3 Threshold of the Microwave Intensity and Exposure Time for Human Thermal Sensation (at 3 GHz) From the Figure 6.4, the threshold for dog testis damage is 5[mW/cm2] for long exposure to microwaves of 3 GHz This intensity and duration is the same value as the critical line defined by the ANSI standards for human. There are some reports which claim the existence of microwave effects in development, such as, deformation of embryonic tail, anatomical disordering of brain and increase of death rate of embryos. However, this has not been studied in detail. Table 6.4 Threshold of the Microwave Intensity and Exposure Time for Human Pain Sensation (at 3 GHz) Humans can sense micro wave thermal effect as a sensation of heat or pain. As shown in Table 6.3 [Michaelson, 1972], humans are sensitive enough to detect microwaves as a sensation of warmth. But it is difficult to discriminate the cause of the sensation using only the sensation itself. Also in the
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