Parameter variation effects on millimeter wave dosimetry based on precise skin thickness in real rats

Abstract

Overview

This study conducts a parametric analysis focusing on the impact of millimeter wave exposure on rat skin models. The investigation spans a frequency range of 6-100 GHz.

Methodology

Detailed measurements of skin layer thickness—including the epidermis, dermis, dermal white adipose tissue, and panniculus carnosus—were recorded using excised tissues from real male Sprague-Dawley rats. This is the first time such precise data has been collected.

Findings

• The study utilized the bioheat transfer equation considering variables like body parts and thermal constants.
• Surface temperature increases were significantly noted; in rat models, these were 52.6-32.3% at the head and 83.3-58.8% at the dorsal skin relative to average human skin models.
• It was observed that tissue thickness and deep blood perfusion rates influence temperature elevation.

Conclusion

The findings suggest strong correlations between EMF exposure at millimeter wave frequencies and thermal elevations in biological tissues, indicating potential health risks associated with such exposures.