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

Tommi Toivonen (Corresponding Author), Tim Toivo, Risto Pitkäaho, Lauri Puranen, Minna Silfverhuth, Ari Mennander, Markus Hannula, Jari Hyttinen, Kari Jokela

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

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 (SAR10g), was 7.3 W/kg for the first set of short bursts and 31 W/kg for the second set of short bursts. The SAR10g in the continuous 10‐min exposure was 31 W/kg. The estimated uncertainty for the dosimetry was ±25% (K = 2).
Original languageEnglish
Pages (from-to)363-370
JournalBioelectromagnetics
Volume29
Issue number5
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Fingerprint

Cell Phones
Swine
Head
Electromagnetic Fields
Radio
Sus scrofa
Uncertainty
Electroencephalography

Keywords

  • electroencephalogram (EEG)
  • anatomical numerical model
  • finite difference time domain (FDTD) simulation
  • high exposure level

Cite this

Toivonen, T., Toivo, T., Pitkäaho, R., Puranen, L., Silfverhuth, M., Mennander, A., ... Jokela, K. (2008). Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields. Bioelectromagnetics, 29(5), 363-370. https://doi.org/10.1002/bem.20404
Toivonen, Tommi ; Toivo, Tim ; Pitkäaho, Risto ; Puranen, Lauri ; Silfverhuth, Minna ; Mennander, Ari ; Hannula, Markus ; Hyttinen, Jari ; Jokela, Kari. / Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields. In: Bioelectromagnetics. 2008 ; Vol. 29, No. 5. pp. 363-370.
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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 (SAR10g), was 7.3 W/kg for the first set of short bursts and 31 W/kg for the second set of short bursts. The SAR10g in the continuous 10‐min exposure was 31 W/kg. The estimated uncertainty for the dosimetry was ±25{\%} (K = 2).",
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Toivonen, T, Toivo, T, Pitkäaho, R, Puranen, L, Silfverhuth, M, Mennander, A, Hannula, M, Hyttinen, J & Jokela, K 2008, 'Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields', Bioelectromagnetics, vol. 29, no. 5, pp. 363-370. https://doi.org/10.1002/bem.20404

Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields. / Toivonen, Tommi (Corresponding Author); Toivo, Tim; Pitkäaho, Risto; Puranen, Lauri; Silfverhuth, Minna; Mennander, Ari; Hannula, Markus; Hyttinen, Jari; Jokela, Kari.

In: Bioelectromagnetics, Vol. 29, No. 5, 2008, p. 363-370.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields

AU - Toivonen, Tommi

AU - Toivo, Tim

AU - Pitkäaho, Risto

AU - Puranen, Lauri

AU - Silfverhuth, Minna

AU - Mennander, Ari

AU - Hannula, Markus

AU - Hyttinen, Jari

AU - Jokela, Kari

PY - 2008

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N2 - 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 (SAR10g), was 7.3 W/kg for the first set of short bursts and 31 W/kg for the second set of short bursts. The SAR10g in the continuous 10‐min exposure was 31 W/kg. The estimated uncertainty for the dosimetry was ±25% (K = 2).

AB - 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 (SAR10g), was 7.3 W/kg for the first set of short bursts and 31 W/kg for the second set of short bursts. The SAR10g in the continuous 10‐min exposure was 31 W/kg. The estimated uncertainty for the dosimetry was ±25% (K = 2).

KW - electroencephalogram (EEG)

KW - anatomical numerical model

KW - finite difference time domain (FDTD) simulation

KW - high exposure level

U2 - 10.1002/bem.20404

DO - 10.1002/bem.20404

M3 - Article

VL - 29

SP - 363

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JO - Bioelectromagnetics

JF - Bioelectromagnetics

SN - 0197-8462

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Toivonen T, Toivo T, Pitkäaho R, Puranen L, Silfverhuth M, Mennander A et al. Setup and dosimetry for exposing anaesthetised pigs in vivo to 900 MHz GSM mobile phone fields. Bioelectromagnetics. 2008;29(5):363-370. https://doi.org/10.1002/bem.20404