Human Health Risk Assessment of 4-12 GHz Radar Waves using CST STUDIO SUITE Software

Authors: Fereidouni F, Mohammadi ST, Faramarzi Shahraki V, Jahantigh F

Year: 2022 Jun 1

Category: Biomedical Physics Engineering

Journal: J Biomed Phys Eng

DOI: 10.31661/jbpe.v0i0.1272

URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9175128/

Abstract

Overview

The importance of radar systems in telecommunications and aerospace is well acknowledged. This study utilizes CST STUDIO SUITE software for simulating the impact of 4-12 GHz radar waves on human health by evaluating an adult body model's response to varied radar frequencies and exposure durations.

Objective

The primary aim is to assess the health risks associated with radar wave exposure and investigate the effects and limitations on human tissues and organs.

Materials and Methods

  • A detailed simulation involved an adult body model exposed to a 1 watt source at 50 centimeters.
  • Various tissue and organ responses to different frequencies and exposure times were studied.
  • Considerations of exposure dose limitations adhered to the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines.

Findings

  • Calculated total body absorbed doses for multiple frequencies and exposure times show significant EMF absorption.
  • The internal organs and head exhibit higher risk with decreasing radar frequencies (from 12 GHz to 4 GHz).
  • Increased risks to human skin at the higher 12 GHz frequency.
  • Specific Absorption Rate (SAR) calculations indicate that safety criteria are met for the normalized source, but higher sources require additional analysis.

Conclusion

This comprehensive study demonstrates the inversely proportional relationship between radar wave frequency and health risk, highlighting significant body tissue effects, particularly at prolonged exposure durations. It underscores the need for stringent safety standards at workplaces dealing with radar wave emissions to protect staff health.

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