Experimental Evaluation of the SAR Induced in Head Phantoms of Three- and Eight-Year-Old Children

Marie-Christine GOSSELIN; Sven KUHN; Andreas CHRIST; Marcel ZEFFERER; Emilio CHERUBINI; Jurriaan F. BAKKER; Gerard C. van RHOON; Niels KUSTER

doi:10.1587/transcom.E95.B.3215

Experimental Evaluation of the SAR Induced in Head Phantoms of Three- and Eight-Year-Old Children

Marie-Christine GOSSELIN, Sven KUHN, Andreas CHRIST, Marcel ZEFFERER, Emilio CHERUBINI, Jurriaan F. BAKKER, Gerard C. van RHOON, Niels KUSTER

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The exposure of children to mobile phones has been a concern for years, but so far the conclusions with respect to compliance with safety standards are based only on simulations. Regulators have requested that these conclusions be supported by experimental evidence. The objectives of this study are 1) to test if the hypothesis that the specific anthropomorphic mannequin (SAM) used in standardized compliance testing is also conservative for homogeneous child head models and 2) to validate the numerical prediction of the peak spatial SAR (psSAR) in child head phantoms. To achieve these objectives, head phantoms of 3- and 8-year-old children were developed and manufactured. The results confirm that SAM is also conservative for child head phantoms, and that the agreement between numerical and experimental values are within the combined uncertainty of 0.9 dB, provided that the actual peak spatial SAR (psSAR) is determined. The results also demonstrate that the currently suggested numerical SAR averaging procedures may underestimate the actual psSAR by more than 1.3 dB and that the currently defined limits in terms of the average of a cubic mass are impractical for non-ambiguous evaluations, i.e., for achieving inter-laboratory repeatability.

Publication: IEICE TRANSACTIONS on Communications Vol.E95-B No.10 pp.3215-3224

Publication Date: 2012/10/01

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Online ISSN: 1745-1345

DOI: 10.1587/transcom.E95.B.3215

Type of Manuscript: PAPER

Category: Electromagnetic Compatibility(EMC)

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Marie-Christine GOSSELIN, Sven KUHN, Andreas CHRIST, Marcel ZEFFERER, Emilio CHERUBINI, Jurriaan F. BAKKER, Gerard C. van RHOON, Niels KUSTER, "Experimental Evaluation of the SAR Induced in Head Phantoms of Three- and Eight-Year-Old Children" in IEICE TRANSACTIONS on Communications, vol. E95-B, no. 10, pp. 3215-3224, October 2012, doi: 10.1587/transcom.E95.B.3215.
Abstract: The exposure of children to mobile phones has been a concern for years, but so far the conclusions with respect to compliance with safety standards are based only on simulations. Regulators have requested that these conclusions be supported by experimental evidence. The objectives of this study are 1) to test if the hypothesis that the specific anthropomorphic mannequin (SAM) used in standardized compliance testing is also conservative for homogeneous child head models and 2) to validate the numerical prediction of the peak spatial SAR (psSAR) in child head phantoms. To achieve these objectives, head phantoms of 3- and 8-year-old children were developed and manufactured. The results confirm that SAM is also conservative for child head phantoms, and that the agreement between numerical and experimental values are within the combined uncertainty of 0.9 dB, provided that the actual peak spatial SAR (psSAR) is determined. The results also demonstrate that the currently suggested numerical SAR averaging procedures may underestimate the actual psSAR by more than 1.3 dB and that the currently defined limits in terms of the average of a cubic mass are impractical for non-ambiguous evaluations, i.e., for achieving inter-laboratory repeatability.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E95.B.3215/_p

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@ARTICLE{e95-b_10_3215,
author={Marie-Christine GOSSELIN, Sven KUHN, Andreas CHRIST, Marcel ZEFFERER, Emilio CHERUBINI, Jurriaan F. BAKKER, Gerard C. van RHOON, Niels KUSTER, },
journal={IEICE TRANSACTIONS on Communications},
title={Experimental Evaluation of the SAR Induced in Head Phantoms of Three- and Eight-Year-Old Children},
year={2012},
volume={E95-B},
number={10},
pages={3215-3224},
abstract={The exposure of children to mobile phones has been a concern for years, but so far the conclusions with respect to compliance with safety standards are based only on simulations. Regulators have requested that these conclusions be supported by experimental evidence. The objectives of this study are 1) to test if the hypothesis that the specific anthropomorphic mannequin (SAM) used in standardized compliance testing is also conservative for homogeneous child head models and 2) to validate the numerical prediction of the peak spatial SAR (psSAR) in child head phantoms. To achieve these objectives, head phantoms of 3- and 8-year-old children were developed and manufactured. The results confirm that SAM is also conservative for child head phantoms, and that the agreement between numerical and experimental values are within the combined uncertainty of 0.9 dB, provided that the actual peak spatial SAR (psSAR) is determined. The results also demonstrate that the currently suggested numerical SAR averaging procedures may underestimate the actual psSAR by more than 1.3 dB and that the currently defined limits in terms of the average of a cubic mass are impractical for non-ambiguous evaluations, i.e., for achieving inter-laboratory repeatability.},
keywords={},
doi={10.1587/transcom.E95.B.3215},
ISSN={1745-1345},
month={October},}

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TY - JOUR
TI - Experimental Evaluation of the SAR Induced in Head Phantoms of Three- and Eight-Year-Old Children
T2 - IEICE TRANSACTIONS on Communications
SP - 3215
EP - 3224
AU - Marie-Christine GOSSELIN
AU - Sven KUHN
AU - Andreas CHRIST
AU - Marcel ZEFFERER
AU - Emilio CHERUBINI
AU - Jurriaan F. BAKKER
AU - Gerard C. van RHOON
AU - Niels KUSTER
PY - 2012
DO - 10.1587/transcom.E95.B.3215
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E95-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2012
AB - The exposure of children to mobile phones has been a concern for years, but so far the conclusions with respect to compliance with safety standards are based only on simulations. Regulators have requested that these conclusions be supported by experimental evidence. The objectives of this study are 1) to test if the hypothesis that the specific anthropomorphic mannequin (SAM) used in standardized compliance testing is also conservative for homogeneous child head models and 2) to validate the numerical prediction of the peak spatial SAR (psSAR) in child head phantoms. To achieve these objectives, head phantoms of 3- and 8-year-old children were developed and manufactured. The results confirm that SAM is also conservative for child head phantoms, and that the agreement between numerical and experimental values are within the combined uncertainty of 0.9 dB, provided that the actual peak spatial SAR (psSAR) is determined. The results also demonstrate that the currently suggested numerical SAR averaging procedures may underestimate the actual psSAR by more than 1.3 dB and that the currently defined limits in terms of the average of a cubic mass are impractical for non-ambiguous evaluations, i.e., for achieving inter-laboratory repeatability.
ER -