Quantitative Relationship between SAR and Temperature Rise inside Eyeball in a Realistic Human Head Model for 1.5GHz-Microwave Exposure

Abstract

For investigating the biological effects of a localized SAR (specific absorption rate) electromagnetic wave exposure to the human body, it is indispensable to understand the temperature-rise inside the human brain including the control center for body temperature. Here, the authors numerically analyze the temperature-rise inside an eyeball of their realistic head model for 1.5 GHz microwave exposure, using the FD-TD (finite-difference time-domain) method. The computed results are validated in comparison with the data obtained by A. Taflove and M.E. Brodwin (1975). In order to examine a quantitative relationship between the localized SAR and temperature-rise, the authors also obtained the tissue amount over which the localized SAR should be averaged so as to well reflect the temperature-rise distribution inside the eyeball. (15 References).