Effects of Dielectric Properties on Radiofrequency Exposure Compliance Using an Alternative Human Head Model

摘要

Uncertainty exists in dosimetry literature regarding the necessary level of complexity in anatomical and other detail for computational simulation of humans for radiofrequency (RF) exposure compliance calculations. Since anatomic parameters are not easily varied within existing models, we have proposed an alternative simplified human head model where key factors affecting Specific Energy Absorption Rate (SAR) are parametrically variable. Populating the new model with data of anatomic variation in key tissues allows investigation into what approximations can be used in physical and computational modeling of SAR and what trade-offs may be made between accuracy and modeling requirements. Here we present results pertaining to the effect of dielectric properties of tissues in the human head on calculated SAR using this model.