1. EVALUATION OF SPECIFIC ABSORPTION RATE IN THE FAR-FIELD, NEAR-TO-FAR FIELD AND NEAR-FIELD REGIONS FOR INTEGRATIVE RADIOFREQUENCY EXPOSURE ASSESSMENT
- Author
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Liorni, I., Capstick, M., van Wel, L., Wiart, J., Joseph, W., Cardis, E., Guxens, M., Vermeulen, R., Thielens, A., One Health Chemisch, IRAS OH Epidemiology Chemical Agents, dIRAS RA-2, Child and Adolescent Psychiatry / Psychology, Laboratoire Traitement et Communication de l'Information (LTCI), Institut Mines-Télécom [Paris] (IMT)-Télécom Paris, Institut Polytechnique de Paris (IP Paris), Chaire Modélisation, Caractérisation et Maîtrise des expositions aux ondes électromagnétiques (C2M), Télécom ParisTech-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Communications & Electronique (COMELEC), Télécom ParisTech, One Health Chemisch, IRAS OH Epidemiology Chemical Agents, and dIRAS RA-2
- Subjects
Electromagnetic field ,Radio Waves ,Near and far field ,010501 environmental sciences ,01 natural sciences ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Electromagnetic Fields ,Wireless ,Radiology, Nuclear Medicine and imaging ,skin and connective tissue diseases ,Absorption (electromagnetic radiation) ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences ,Exposure assessment ,Remote sensing ,Radiation ,Radiological and Ultrasound Technology ,business.industry ,[SDE.IE]Environmental Sciences/Environmental Engineering ,Public Health, Environmental and Occupational Health ,Specific absorption rate ,General Medicine ,business ,Whole body ,Radio wave - Abstract
The specific absorption rate (SAR) induced by wireless radiofrequency (RF) systems depends on different parameters. Previously, SAR was mainly assessed under conditions of a single frequency and technology and for a limited number of localized RF sources. The current and emerging mobile systems involve a wider range of usage scenarios and are frequently used simultaneously, leading to combined exposures for which almost no exposure evaluation exists. The aim and novelty of this study is to close this gap of knowledge by developing new methods to rapidly evaluate the SAR induced by RF systems in such scenarios at frequencies from 50 MHz to 5.5 GHz. To this aim, analytical methods for SAR estimation in several usage scenarios were derived through a large-scale numerical study. These include subject-specific characteristics, properties of the RF systems and provide an estimation of the SAR in the whole body, tissues and organs, and different brain regions.
- Published
- 2020