Empirical study on specific absorption rate of head tissues due to induced heating of 4G cell phone radiation

Abstract

Overview

Extended use of mobile phones releases electromagnetic radiation which could potentially cause biological harm at the molecular levels in humans. This study focused on observing the thermal effects and specific absorption rates (SAR) in brain, eye, and skin tissues.

Methodology

A phantom simulating a human head including layers like skin, skull, and brain was exposed to prolonged mobile phone radiation. The exposure lasted for over 600 seconds, measuring temperature changes at certain points using sensitive thermocouple probes.

Findings

• The average temperature increase in brain tissue was recorded at 0.10 +/- 0.05 degrees Celsius, with an SAR of 0.66 +/- 0.35 W/kg.
• For the eye socket, the temperature rise was 0.03 +/- 0.02 degrees Celsius, with an SAR of 0.15 +/- 0.08 W/kg.
• Skin tissue showed a temperature increase of 0.14 +/- 0.05 degrees Celsius and an SAR of 0.66 +/- 0.42 W/kg.

Conclusion

Despite SAR values lying within the internationally prescribed safe limit of 2 W/kg, the extensive and growing use of mobile phones raises concerns about the potential cumulative health effects.