Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields.

Full Abstract

The aim of this study was a dosimetrical analysis of the setup used in the exposure of the heads of domestic pigs to GSM-modulated radio frequency electromagnetic fields (RF-EMF) at 900 MHz. The heads of pigs were irradiated with a half wave dipole using three different exposure routines; short bursts of 1-3 s at two different exposure levels and a continuous 10-min exposure. The electroencephalogram (EEG) was registered continuously during the exposures to search for RF-EMF originated changes. The dosimetry was based on simulations with the anatomical heterogeneous numerical model of the pig head. The simulation results were validated by experimental measurements with the exposure dipole and a homogeneous liquid phantom resembling the pig head. The specific absorption rate (SAR), defined as a maximum average over 10 g tissue mass (SAR(10g)), was 7.3 W/kg for the first set of short bursts and 31 W/kg for the second set of short bursts. The SAR(10g) in the continuous 10-min exposure was 31 W/kg. The estimated uncertainty for the dosimetry was +/-25% (K = 2).

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Author information

Author/s: Toivonen, Tommi (T); Toivo, Tim (T); Pitkäaho, Risto (R); Puranen, Lauri (L); Silfverhuth, Minna (M); Mennander, Ari (A); Hannula, Markus (M); Hyttinen, Jari (J); Jokela, Kari (K);

Affiliation: STUK-Radiation and Nuclear Safety Authority, Helsinki, Finland. tommi.toivonen(-atsign-)stuk.fi

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Bioelectromagnetics (Bioelectromagnetics), published in United States. (Language: eng)

Reference: 2008-Jul; vol 29 (issue 5) : pp 363-70

Dates: Created 2008/06/11; Completed 2008/07/07;

PMID: 18247366, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Equipment Failure Analysis
Head - physiology; radiation effects
Microwaves
Radiometry - instrumentation; methods
Swine

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