Numerical simulation of pressure waves in the cochlea induced by a microwave pulse. Issue 7 (6th August 2014)

• Record Type: Journal Article
• Authors: Yitzhak, Nir M.; Ruppin, Raphael; Hareuveny, Ronen
• Is Part Of: Bioelectromagnetics. Volume 35:Issue 7(2014:Oct.)
• Page Start: 491
• Page End: 496
• Publication Date: 2014-08-06
• Subjects: Electromagnetism -- Physiological effect -- Periodicals; 571.47
• DOI: 10.1002/bem.21869
• Languages: English
• ISSNs: 0197-8462

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="bem21869-sec-0001" sec-type="section"> <p>The pressure waves developing at the cochlea by the irradiation of the body with a plane wave microwave pulse are obtained by numerical simulation, employing a two‐step finite‐difference time‐domain (FDTD) algorithm. First, the specific absorption rate (SAR) distribution is obtained by solving the Maxwell equations on a FDTD grid. Second, the temperature rise due to this SAR distribution is used to formulate the thermoelastic equations of motion, which are discretized and solved by the FDTD method. The calculations are performed for anatomically based full body human models, as well as for a head model. The dependence of the pressure amplitude at the cochlea on the frequency, the direction of propagation, and the polarization of the incident electromagnetic radiation, as well as on the pulse width, was investigated. Bioelectromagnetics. 35:491–496, 2014. © 2014 Wiley Periodicals, Inc.</p> </sec> </abstract>