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Analysis of the influence of handset phone position on RF exposure of brain tissue.

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Ghanmi A, Varsier N, Hadjem A, Conil E, Picon O, Wiart J. · 2014

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The study found that SAR distributions in the brain are sensitive to phone position, with 5–10% of positions producing 20% higher SAR than the standard cheek position, while the SAM model is conservative for 95% of positions.

Plain English Summary

Summary written for general audiences

Researchers analyzed how phone position affects brain exposure by comparing SAR from two GSM phone models. They tested 80 phone positions selected via Latin hypercube sampling. They estimated SAR10g in the head, SAR1g in the brain, and SAR in brain structures at 900 and 1800 MHz. Results show SAR distributions in the brain are sensitive to phone position. For 5–10% of positions, SAR10g in head and SAR1g in brain were 20% higher than the standard cheek position, and the SAM model was conservative for 95% of positions.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.80 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.80 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. The study examined exposure from: 900 and 1800 MHz

Study Details

In this article, we analyze the influence of the phone position on the brain exposure by comparing the specific absorption rate (SAR) induced in the head by two different mobile phone models operating in Global System for Mobile Communications (GSM) frequency bands.

To achieve this objective, 80 different phone positions were chosen using an experiment based on the...

The results illustrate that SAR distributions inside the brain area are sensitive to the position of...

Cite This Study
Ghanmi A, Varsier N, Hadjem A, Conil E, Picon O, Wiart J. (2014). Analysis of the influence of handset phone position on RF exposure of brain tissue. Bioelectromagnetics. 34(8):568-579, 2014.
Show BibTeX
@article{a_2014_analysis_of_the_influence_2110,
  author = {Ghanmi A and Varsier N and Hadjem A and Conil E and Picon O and Wiart J.},
  title = {Analysis of the influence of handset phone position on RF exposure of brain tissue.},
  year = {2014},
  doi = {10.1002/bem.21856},
  url = {https://onlinelibrary.wiley.com/doi/10.1002/bem.21856},
}
DOI: 10.1002/bem.21856

Cited By (20 papers)

Quick Questions About This Study

The study analyzed the influence of phone position on brain exposure by comparing SAR from two GSM phone models.
Eighty phone positions were chosen using Latin hypercube sampling to select a representative set.
SAR10g in the head, SAR1g in the brain, and SAR in brain structures were estimated at 900 and 1800 MHz.
SAR distributions in the brain were sensitive to the position of the mobile phone relative to the head.
For 5–10% of positions, SAR10g in the head and SAR1g in the brain were 20% higher than the standard cheek position, and the SAM model was conservative for 95% of positions.