title: Computational dosimetry for child and adult human models due to contact current from 10 Hz to 110 MHz.
abstract: This study computationally investigates in situ electric field due to low-frequency contact current and specific absorption rate (SAR) due to high-frequency contact currents in a realistic child model and compared with those in the adult model. The in situ electric fields and SAR in the child model are found to exceed the corresponding values in the adult. At the finger tip, the electric field and SAR due to contact currents, both at the ICNIRP reference levels and IEEE Maximum Permissible Exposures, are well beyond the corresponding basic restrictions. In the remaining part, the largest difference was observed in spinal tissue, and the smallest effect was in the heart. With respect to brain and skin conductivities, one needs to strongly consider which values of tissue properties are used to interpret one's results. The in situ electric fields resulting from contact with the metal plane are similar to those for contact with the wire.
authors.affiliation: Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-shi 466-8555, Japan City University of Hong Kong, Kowloon, Hong Kong, People's Republic of China.
authors.forename: Kwok Hung
authors.initials: KH
authors.lastname: Chan
authors.affiliation: Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-shi 466-8555, Japan.
authors.forename: Shunya
authors.initials: S
authors.lastname: Ohta
authors.affiliation: Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-shi 466-8555, Japan.
authors.forename: Ilkka
authors.initials: I
authors.lastname: Laakso
authors.affiliation: Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-shi 466-8555, Japan ahirata@nitech.ac.jp.
authors.forename: Akimasa
authors.initials: A
authors.lastname: Hirata
authors.affiliation: Tokyo Metropolitan University, Tokyo, Japan.
authors.forename: Yukihisa
authors.initials: Y
authors.lastname: Suzuki
authors.affiliation: Electric Power Research Institute, Palo Alto, CA, USA.
authors.forename: Robert
authors.initials: R
authors.lastname: Kavet
mesh_terms: D000328:Adult; D002648:Child; D003198:Computer Simulation; D004553:Electric Conductivity; D006801:Humans; D008954:Models, Biological; D009928:Organ Specificity; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*; D012015:Reference Standards