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SAR / Device Absorption

Differences in RF energy absorption in the heads of adults and children.

No Effects Found

Christ A, Kuster N. · 2005

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The review concludes that energy exposure does not increase due to smaller heads, but identifies open issues about dielectric tissue parameters and pinna thickness.

Plain English Summary

Summary written for general audiences

The study investigates differences in RF energy absorption in the heads of adults and children. It discusses absorption mechanisms, tissue parameters, the effect of the pinna, and uncertainties in head models based on spheroids, scaled adult heads, and MRI data of children. The review concludes that energy exposure does not increase due to smaller heads, but identifies open issues regarding dielectric tissue parameters and pinna thickness.

Why This Matters

The study aims to provide a comprehensive review of current knowledge on parameters and mechanisms affecting mobile phone user exposure, with special focus on children. It notes a long and controversial debate on possible differences in EM energy absorption between adults and children during cell phone usage. Some published studies report higher specific absorption rate (SAR) in children and explain this based on smaller head size.

Study Details

The aim of this study is to investigate Differences in RF energy absorption in the heads of adults and children.

This study intends to give a comprehensive review of the current state of knowledge about the parame...

Discussed are the absorption mechanism, tissue parameters, the effect of the pinna, and the uncertai...

The conclusions of the review do not support the assumption that the energy exposure increases due to smaller heads, but identifies open issues regarding the dielectric tissue parameters and the thickness of the pinna.

Cite This Study
Christ A, Kuster N. (2005). Differences in RF energy absorption in the heads of adults and children. Bioelectromagnetics. Suppl 7:S31-44. 2005.
Show BibTeX
@article{a_2005_differences_in_rf_energy_2978,
  author = {Christ A and Kuster N.},
  title = {Differences in RF energy absorption in the heads of adults and children.},
  year = {2005},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/16142771/},
}
PubMed: 16142771

Cited By (93 papers)

View all 93 citing papers on Semantic Scholar

Quick Questions About This Study

The aim was to investigate differences in RF energy absorption in the heads of adults and children.
The review concludes that energy exposure does not increase due to smaller heads, but identifies open issues about dielectric tissue parameters and pinna thickness.
The review discusses absorption mechanisms, tissue parameters, the effect of the pinna, and uncertainties in head models based on spheroids, scaled adult heads, and MRI data of children.
Some published studies report higher specific absorption rate (SAR) in children and explain this based on smaller head size.
Age-dependent changes of the dielectric tissue parameters have again ignited the discussion.