Abstract

Overview

This paper represents the numerical analysis of Specific Absorption Rate (SAR) and temperature distribution within a real child head model exposed to mobile phone radiation at the frequency of 900 MHz.

Key Findings

• SAR and temperature distribution are obtained through numerical solutions of electromagnetic waves propagation and bioheat equations.
• The maximum absorption of electromagnetic energy lies in the surface layers of the model, exceeding the maximum allowed standards.
• Temperature increases are most significant in biological tissues and organs closest to the radiation source, with values decreasing more slowly than the SAR as distance from the source increases.

Conclusion

The study conducted on the anatomical model of a child's head highlights that while SAR and temperature both decrease with increasing distance from the mobile phone, different mechanisms govern their distribution. In particular, it reveals that areas where SAR exceeds permissible levels warrant further investigation into potential adverse effects, despite some temperature levels being below critical thresholds for thermal damage.