title: The specific absorption rate of tissues in rats exposed to electromagnetic plane waves in the frequency range of 0.05-5 GHz and SARwb in free-moving rats.
abstract: As electromagnetic exposure experiments can only be performed on small animals, usually rats, research on the characteristics of specific absorption rate (SAR) distribution in the rat has received increasing interest. A series of calculations, which simulated the SAR in a male rat anatomical model exposed to electromagnetic plane waves ranging from 0.05 to 5 GHz with different incidence and polarization, were conducted. The whole-body-averaged SAR (SARwb) and the tissue-averaged SAR (SARavg) in 20 major tissues were determined. Results revealed that incidence has great impact on SAR in the rat at higher frequencies owing to the skin effect and the effect on SARavg in tissues is much more apparent than that on SARwb; while polarization plays an important role under lower frequencies. Not only the incidence, but also the polarization in the rat keeps changing when the rat is in free movement. Thus, this article discussed a convenient way to obtain relatively accurate SARwb in a free-moving rat.
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China.
authors.forename: Bingxin
authors.initials: B
authors.lastname: Chen
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China.
authors.forename: Jiamin
authors.initials: J
authors.lastname: Wang
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China.
authors.forename: Hongxin
authors.initials: H
authors.lastname: Qi
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China.|State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.
authors.forename: Shude
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Physics, East China Normal University, Shanghai, 200241, China. xhwang@phy.ecnu.edu.cn.
authors.forename: Xianghui
authors.initials: X
authors.lastname: Wang
mesh_terms: D065638:Absorption, Radiation; D000818:Animals; D004553:Electric Conductivity; D004574:Electromagnetic Fields; D008297:Male; D009928:Organ Specificity / Q000528:radiation effects*; D017207:Rats, Sprague-Dawley
keywords: FDTD; Free-moving; Rat anatomical model; SAR; Skin effect