Specific absorption rate variation in a brain phantom due to exposure by a 3G mobile phone: problems in dosimetry.
Behari J, Nirala JP. · 2013
View Original AbstractMobile phone radiation absorption varies dramatically with device position, revealing flaws in current safety testing methods.
Plain English Summary
Researchers tested how 3G mobile phone radiation (1718.5 MHz) affects brain tissue using a laboratory phantom (artificial brain material) designed to mimic a small rat brain. They found that the amount of radiation absorbed (called SAR) varied significantly depending on the phone's angle and position, with some measurements showing higher absorption than expected. The study reveals important flaws in how we currently measure radiation exposure from mobile devices.
Why This Matters
This research exposes a critical gap in our understanding of EMF dosimetry - the science of measuring radiation exposure. The finding that SAR values vary dramatically based on device positioning challenges the oversimplified assumptions built into current safety testing protocols. Most compliance testing uses static positions that may not reflect real-world usage patterns where phones constantly move and rotate. The researchers' conclusion that we need 'a fresh look to understand the mode of electromagnetic field-bio interaction' is particularly significant. It suggests our current safety standards, which rely heavily on SAR measurements, may be missing important variables that affect actual biological exposure. What this means for you is that the radiation dose your brain receives from your phone likely varies more than regulatory agencies account for in their safety assessments.
Exposure Information
Specific exposure levels were not quantified in this study. The study examined exposure from: 1718.5 MHz
Study Details
A specific absorption rate (SAR) measurements system has been developed for compliance testing of personal mobile phone in a brain phantom material contained in a Perspex box.
The volume of the box has been chosen corresponding to the volume of a small rat and illuminated by ...
These results are higher than those obtained with the knowledge of induced field measurements. It is...
The data are suggestive of having a fresh look to understand the mode of electromagnetic field -bio interaction.
Show BibTeX
@article{j_2013_specific_absorption_rate_variation_1893,
author = {Behari J and Nirala JP.},
title = {Specific absorption rate variation in a brain phantom due to exposure by a 3G mobile phone: problems in dosimetry.},
year = {2013},
url = {https://pubmed.ncbi.nlm.nih.gov/24579373/},
}